diff --git a/gr-simple-submit-rules-label-config/gr-simple-submit-rules-label-config.html b/gr-simple-submit-rules-label-config/gr-simple-submit-rules-label-config.html
index 79bc203..5231978 100644
--- a/gr-simple-submit-rules-label-config/gr-simple-submit-rules-label-config.html
+++ b/gr-simple-submit-rules-label-config/gr-simple-submit-rules-label-config.html
@@ -107,7 +107,7 @@
           <span class="value">
           <input id="copyMinScore"
               type="checkbox"
-              checked="{{_copyScores.copyMinScore::change}}"
+              checked="{{_copyScoreRules.copyMinScore::change}}"
               disabled$="[[readOnly]]">
           </span>
         </section>
@@ -126,7 +126,7 @@
           <span class="value">
             <input id="copyMaxScore"
                 type="checkbox"
-                checked="{{_copyScores.copyMaxScore::change}}"
+                checked="{{_copyScoreRules.copyMaxScore::change}}"
                 disabled$="[[readOnly]]">
           </span>
         </section>
@@ -146,7 +146,7 @@
           <span class="value">
             <input id="copyAllScoresOnTrivialRebase"
                 type="checkbox"
-                checked="{{_copyScores.copyAllScoresOnTrivialRebase::change}}"
+                checked="{{_copyScoreRules.copyAllScoresOnTrivialRebase::change}}"
                 disabled$="[[readOnly]]">
           </span>
         </section>
@@ -166,7 +166,7 @@
           <span class="value">
             <input id="copyAllScoresIfNoCodeChange"
                 type="checkbox"
-                checked="{{_copyScores.copyAllScoresIfNoCodeChange::change}}"
+                checked="{{_copyScoreRules.copyAllScoresIfNoCodeChange::change}}"
                 disabled$="[[readOnly]]">
           </span>
         </section>
@@ -187,7 +187,7 @@
           <span class="value">
             <input id="copyAllScoresIfNoChange"
                 type="checkbox"
-                checked="{{_copyScores.copyAllScoresIfNoChange::change}}"
+                checked="{{_copyScoreRules.copyAllScoresIfNoChange::change}}"
                 disabled$="[[readOnly]]">
           </span>
         </section>
@@ -207,7 +207,7 @@
           <span class="value">
             <input id="copyAllScoresOnMergeFirstParentUpdate"
                 type="checkbox"
-                checked="{{_copyScores.copyAllScoresOnMergeFirstParentUpdate::change}}"
+                checked="{{_copyScoreRules.copyAllScoresOnMergeFirstParentUpdate::change}}"
                 disabled$="[[readOnly]]">
           </span>
         </section>
diff --git a/gr-simple-submit-rules-label-config/gr-simple-submit-rules-label-config.js b/gr-simple-submit-rules-label-config/gr-simple-submit-rules-label-config.js
index 7e11c39..777ff01 100644
--- a/gr-simple-submit-rules-label-config/gr-simple-submit-rules-label-config.js
+++ b/gr-simple-submit-rules-label-config/gr-simple-submit-rules-label-config.js
@@ -45,7 +45,7 @@
         type: Boolean,
         value: false
       },
-      _updatingCopyScores: {
+      _updatingCopyScoreRules: {
         type: Boolean,
         value: false
       },
@@ -53,7 +53,7 @@
         type: Object,
         computed: '_computeLabelConfig(repoConfig.labels, labelName)'
       },
-      _copyScores: {
+      _copyScoreRules: {
         type: Object,
         value: {},
       },
@@ -64,8 +64,8 @@
     observers: [
       '_observeFunctionChange(_labelConfig.function)',
       '_observeFunctionDescriptorChange(_negativeBlocks, _maxVoteRequired)',
-      '_observeCopyScoresChange(_labelConfig.copy_scores)',
-      '_observeCopyScoresChangeInUi(_copyScores.*)',
+      '_observeCopyScoreRulesChange(_labelConfig.copy_scores)',
+      '_observeCopyScoreRulesChangeInUi(_copyScoreRules.*)',
     ],
 
     _observeFunctionDescriptorChange(negativeBlocks, maxVoteRequired) {
@@ -100,34 +100,34 @@
       return labels[this.labelName] || {};
     },
 
-    _observeCopyScoresChange() {
-      if (this._updatingCopyScores) { return; }
-      this._updatingCopyScores = true;
+    _observeCopyScoreRulesChange() {
+      if (this._updatingCopyScoreRules) { return; }
+      this._updatingCopyScoreRules = true;
 
       for (let key of COPY_SCORES) {
-        this.set(['_copyScores', key], false);
+        this.set(['_copyScoreRules', key], false);
       }
       for (let value of this._labelConfig.copy_scores) {
-        this.set(['_copyScores', value], true);
+        this.set(['_copyScoreRules', value], true);
       }
 
-      this._updatingCopyScores = false;
+      this._updatingCopyScoreRules = false;
     },
 
-    _observeCopyScoresChangeInUi() {
-      if (this._updatingCopyScores) { return; }
-      this._updatingCopyScores = true;
+    _observeCopyScoreRulesChangeInUi() {
+      if (this._updatingCopyScoreRules) { return; }
+      this._updatingCopyScoreRules = true;
 
 
-      let newCopyScores = [];
-      for (let key in this._copyScores) {
-        if (this._copyScores[key]) {
-          newCopyScores.push(key);
+      let newCopyScoreRules = [];
+      for (let key in this._copyScoreRules) {
+        if (this._copyScoreRules[key]) {
+          newCopyScoreRules.push(key);
         }
       }
-      this.set('_labelConfig.copy_scores', newCopyScores);
+      this.set('_labelConfig.copy_scores', newCopyScoreRules);
 
-      this._updatingCopyScores = false;
+      this._updatingCopyScoreRules = false;
     },
   });
 })();
diff --git a/src/main/java/com/googlesource/gerrit/plugins/simplesubmitrules/api/LabelDefinition.java b/src/main/java/com/googlesource/gerrit/plugins/simplesubmitrules/api/LabelDefinition.java
index 4b9d6ea..e128833 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/simplesubmitrules/api/LabelDefinition.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/simplesubmitrules/api/LabelDefinition.java
@@ -23,14 +23,16 @@
 public class LabelDefinition {
   public String function;
   public Boolean ignoreSelfApproval;
-  public Set<String> copyScores;
+  public Set<String> copyScoreRules;
+  @Deprecated public Set<String> copyScores;
 
   public LabelDefinition() {}
 
-  public LabelDefinition(String function, Boolean ignoreSelfApproval, Set<String> copyScores) {
+  public LabelDefinition(String function, Boolean ignoreSelfApproval, Set<String> copyScoreRules) {
     this.function = function;
     this.ignoreSelfApproval = ignoreSelfApproval;
-    this.copyScores = copyScores;
+    this.copyScoreRules = copyScoreRules;
+    this.copyScores = copyScoreRules;
   }
 
   public Optional<LabelFunction> getFunction() {
@@ -39,7 +41,7 @@
 
   @Override
   public int hashCode() {
-    return Objects.hash(function, ignoreSelfApproval, copyScores);
+    return Objects.hash(function, ignoreSelfApproval, copyScores, copyScoreRules);
   }
 
   @Override
@@ -50,7 +52,8 @@
     LabelDefinition other = (LabelDefinition) o;
     return Objects.equals(function, other.function)
         && Objects.equals(ignoreSelfApproval, other.ignoreSelfApproval)
-        && Objects.equals(copyScores, other.copyScores);
+        && Objects.equals(copyScores, other.copyScores)
+        && Objects.equals(copyScoreRules, other.copyScoreRules);
   }
 
   @Override
@@ -59,6 +62,7 @@
         .add("function", function)
         .add("ignoreSelfApproval", ignoreSelfApproval)
         .add("copyScores", copyScores)
+        .add("copyScoreRules", copyScoreRules)
         .toString();
   }
 }
diff --git a/src/main/java/com/googlesource/gerrit/plugins/simplesubmitrules/config/ConfigTranslator.java b/src/main/java/com/googlesource/gerrit/plugins/simplesubmitrules/config/ConfigTranslator.java
index 178fadb..8e61857 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/simplesubmitrules/config/ConfigTranslator.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/simplesubmitrules/config/ConfigTranslator.java
@@ -47,44 +47,47 @@
     this.pluginName = pluginName;
   }
 
-  static void extractLabelCopyScores(LabelType labelType, LabelDefinition labelDefinition) {
-    labelDefinition.copyScores = new HashSet<>();
+  static void extractLabelCopyScoreRules(LabelType labelType, LabelDefinition labelDefinition) {
+    labelDefinition.copyScoreRules = new HashSet<>();
     if (labelType.isCopyMinScore()) {
-      labelDefinition.copyScores.add(ProjectConfig.KEY_COPY_MIN_SCORE);
+      labelDefinition.copyScoreRules.add(ProjectConfig.KEY_COPY_MIN_SCORE);
     }
     if (labelType.isCopyMaxScore()) {
-      labelDefinition.copyScores.add(ProjectConfig.KEY_COPY_MAX_SCORE);
+      labelDefinition.copyScoreRules.add(ProjectConfig.KEY_COPY_MAX_SCORE);
     }
     if (labelType.isCopyAllScoresIfNoChange()) {
-      labelDefinition.copyScores.add(ProjectConfig.KEY_COPY_ALL_SCORES_IF_NO_CHANGE);
+      labelDefinition.copyScoreRules.add(ProjectConfig.KEY_COPY_ALL_SCORES_IF_NO_CHANGE);
     }
     if (labelType.isCopyAllScoresIfNoCodeChange()) {
-      labelDefinition.copyScores.add(ProjectConfig.KEY_COPY_ALL_SCORES_IF_NO_CODE_CHANGE);
+      labelDefinition.copyScoreRules.add(ProjectConfig.KEY_COPY_ALL_SCORES_IF_NO_CODE_CHANGE);
     }
     if (labelType.isCopyAllScoresOnMergeFirstParentUpdate()) {
-      labelDefinition.copyScores.add(
+      labelDefinition.copyScoreRules.add(
           ProjectConfig.KEY_COPY_ALL_SCORES_ON_MERGE_FIRST_PARENT_UPDATE);
     }
     if (labelType.isCopyAllScoresOnTrivialRebase()) {
-      labelDefinition.copyScores.add(ProjectConfig.KEY_COPY_ALL_SCORES_ON_TRIVIAL_REBASE);
+      labelDefinition.copyScoreRules.add(ProjectConfig.KEY_COPY_ALL_SCORES_ON_TRIVIAL_REBASE);
     }
+    // TODO(hiesel) Remove once caller know of the new name
+    labelDefinition.copyScores = labelDefinition.copyScoreRules;
   }
 
-  static void applyCopyScoresTo(@Nullable Collection<String> copyScores, LabelType labelType) {
-    if (copyScores == null) {
+  static void applyCopyScoreRulesTo(
+      @Nullable Collection<String> copyScoreRules, LabelType labelType) {
+    if (copyScoreRules == null) {
       return;
     }
 
-    labelType.setCopyMinScore(copyScores.contains(ProjectConfig.KEY_COPY_MIN_SCORE));
-    labelType.setCopyMaxScore(copyScores.contains(ProjectConfig.KEY_COPY_MAX_SCORE));
+    labelType.setCopyMinScore(copyScoreRules.contains(ProjectConfig.KEY_COPY_MIN_SCORE));
+    labelType.setCopyMaxScore(copyScoreRules.contains(ProjectConfig.KEY_COPY_MAX_SCORE));
     labelType.setCopyAllScoresIfNoChange(
-        copyScores.contains(ProjectConfig.KEY_COPY_ALL_SCORES_IF_NO_CHANGE));
+        copyScoreRules.contains(ProjectConfig.KEY_COPY_ALL_SCORES_IF_NO_CHANGE));
     labelType.setCopyAllScoresIfNoCodeChange(
-        copyScores.contains(ProjectConfig.KEY_COPY_ALL_SCORES_IF_NO_CODE_CHANGE));
+        copyScoreRules.contains(ProjectConfig.KEY_COPY_ALL_SCORES_IF_NO_CODE_CHANGE));
     labelType.setCopyAllScoresOnMergeFirstParentUpdate(
-        copyScores.contains(ProjectConfig.KEY_COPY_ALL_SCORES_ON_MERGE_FIRST_PARENT_UPDATE));
+        copyScoreRules.contains(ProjectConfig.KEY_COPY_ALL_SCORES_ON_MERGE_FIRST_PARENT_UPDATE));
     labelType.setCopyAllScoresOnTrivialRebase(
-        copyScores.contains(ProjectConfig.KEY_COPY_ALL_SCORES_ON_TRIVIAL_REBASE));
+        copyScoreRules.contains(ProjectConfig.KEY_COPY_ALL_SCORES_ON_TRIVIAL_REBASE));
   }
 
   SubmitConfig convertFrom(ProjectState projectState) {
@@ -159,7 +162,10 @@
         }
         labelType.setFunction(function);
       }
-      applyCopyScoresTo(definition.copyScores, labelType);
+      // TODO(hiesel): Remove fallback to copyScores
+      applyCopyScoreRulesTo(
+          definition.copyScoreRules != null ? definition.copyScoreRules : definition.copyScores,
+          labelType);
     }
   }
 
@@ -172,7 +178,7 @@
     config.labels.put(labelType.getName(), labelDefinition);
 
     labelDefinition.function = labelType.getFunction().getFunctionName();
-    extractLabelCopyScores(labelType, labelDefinition);
+    extractLabelCopyScoreRules(labelType, labelDefinition);
     labelDefinition.ignoreSelfApproval = labelType.ignoreSelfApproval();
   }
 
diff --git a/src/main/resources/Documentation/about.md b/src/main/resources/Documentation/about.md
index 33f465c..8ad2fa1 100644
--- a/src/main/resources/Documentation/about.md
+++ b/src/main/resources/Documentation/about.md
@@ -14,7 +14,7 @@
 The REST API provides a view of the configuration including inheritance.
 The PUT method only changes the current project's configuration.
 
-The Copy Scores are handled by Core Gerrit.
+The Copy Score Rules are handled by Core Gerrit.
 
 ## The REST API
 This plugin exposes a REST API to configure the labels and simple rules. It is available via the
@@ -75,7 +75,7 @@
 {
   "function": LabelFunction,
   "ignore_self_approval": boolean,
-  "copy_scores": CopyScoreRule[]
+  "copy_score_rules": CopyScoreRule[]
 }
 ```
 
diff --git a/src/test/java/com/googlesource/gerrit/plugins/simplesubmitrules/PluginIT.java b/src/test/java/com/googlesource/gerrit/plugins/simplesubmitrules/PluginIT.java
index 0bee0cb..fc4aefc 100644
--- a/src/test/java/com/googlesource/gerrit/plugins/simplesubmitrules/PluginIT.java
+++ b/src/test/java/com/googlesource/gerrit/plugins/simplesubmitrules/PluginIT.java
@@ -160,6 +160,27 @@
     assertThat(response.labels.get("Code-Review").ignoreSelfApproval).isTrue();
   }
 
+  @Test
+  public void copyScoreRulesApiFieldIsBackwardsCompatible() throws Exception {
+    LabelDefinition codeReviewNoSelfApproval =
+        new LabelDefinition("MaxNoBlock", true, ImmutableSet.of("copyAllScoresIfNoChange"));
+    codeReviewNoSelfApproval.copyScores = codeReviewNoSelfApproval.copyScoreRules;
+    // Use only deprecated API field, set the new one to NULL
+    codeReviewNoSelfApproval.copyScoreRules = null;
+
+    SubmitConfig config =
+        new SubmitConfig(ImmutableMap.of("Code-Review", codeReviewNoSelfApproval), null);
+    postConfig(project, config);
+
+    String currentConfig = adminRestSession.get(endpointUrl(project)).getEntityContent();
+    SubmitConfig parsedConfig = newGson().fromJson(currentConfig, SubmitConfig.class);
+    assertThat(parsedConfig.labels.keySet()).containsExactly("Code-Review");
+
+    LabelDefinition result = parsedConfig.labels.get("Code-Review");
+    assertThat(result.copyScoreRules).isEqualTo(result.copyScores);
+    assertThat(result.copyScoreRules).isEqualTo(codeReviewNoSelfApproval.copyScores);
+  }
+
   private SubmitConfig postConfig(Project.NameKey project, SubmitConfig config) throws Exception {
     RawInput rawInput =
         RawInputUtil.create(newGson().toJson(config).getBytes(Charsets.UTF_8), JSON_TYPE);
diff --git a/src/test/java/com/googlesource/gerrit/plugins/simplesubmitrules/config/ConfigTranslatorTest.java b/src/test/java/com/googlesource/gerrit/plugins/simplesubmitrules/config/ConfigTranslatorTest.java
index 0528194..4b3d61c 100644
--- a/src/test/java/com/googlesource/gerrit/plugins/simplesubmitrules/config/ConfigTranslatorTest.java
+++ b/src/test/java/com/googlesource/gerrit/plugins/simplesubmitrules/config/ConfigTranslatorTest.java
@@ -70,9 +70,9 @@
     LabelDefinition labelDefinition = new LabelDefinition();
 
     functionToSet.accept(label, false);
-    ConfigTranslator.extractLabelCopyScores(label, labelDefinition);
+    ConfigTranslator.extractLabelCopyScoreRules(label, labelDefinition);
 
-    assertThat(labelDefinition.copyScores)
+    assertThat(labelDefinition.copyScoreRules)
         .named("[case %s:false]", copyScoreName)
         .doesNotContain(copyScoreName);
   }
@@ -84,9 +84,9 @@
     LabelDefinition labelDefinition = new LabelDefinition();
 
     functionToSet.accept(label, true);
-    ConfigTranslator.extractLabelCopyScores(label, labelDefinition);
+    ConfigTranslator.extractLabelCopyScoreRules(label, labelDefinition);
 
-    assertThat(labelDefinition.copyScores)
+    assertThat(labelDefinition.copyScoreRules)
         .named("[case %s:true]", copyScoreName)
         .contains(copyScoreName);
   }
@@ -95,7 +95,7 @@
       String copyScoreName, Predicate<LabelType> functionToCheck) {
     LabelType label = LabelType.withDefaultValues("Verified");
 
-    ConfigTranslator.applyCopyScoresTo(ImmutableList.of(copyScoreName), label);
+    ConfigTranslator.applyCopyScoreRulesTo(ImmutableList.of(copyScoreName), label);
     assertThat(functionToCheck.test(label)).named("[case %s:true]", copyScoreName).isTrue();
   }
 
@@ -103,7 +103,7 @@
       String copyScoreName, Predicate<LabelType> functionToCheck) {
     LabelType label = LabelType.withDefaultValues("Verified");
 
-    ConfigTranslator.applyCopyScoresTo(ImmutableList.of(), label);
+    ConfigTranslator.applyCopyScoreRulesTo(ImmutableList.of(), label);
     assertThat(functionToCheck.test(label)).named("[case %s:false]", copyScoreName).isFalse();
   }
 }