diff --git a/src/main/java/com/googlesource/gerrit/plugins/its/base/workflow/RuleBase.java b/src/main/java/com/googlesource/gerrit/plugins/its/base/workflow/RuleBase.java
index ee0c568..748f4f6 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/its/base/workflow/RuleBase.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/its/base/workflow/RuleBase.java
@@ -16,7 +16,7 @@
 
 import com.google.common.collect.Lists;
 import com.google.gerrit.extensions.annotations.PluginName;
-import com.google.gerrit.server.config.SitePath;
+import com.google.gerrit.server.config.SitePaths;
 import com.google.inject.Inject;
 import java.io.File;
 import java.io.IOException;
@@ -32,12 +32,8 @@
 public class RuleBase {
   private static final Logger log = LoggerFactory.getLogger(RuleBase.class);
 
-  /** File beginning (relative to site) to load rules from */
-  private static final String ITS_CONFIG_FILE_START =
-      "etc" + File.separatorChar + "its" + File.separator + "actions";
-
-  /** File end to load rules from */
-  private static final String ITS_CONFIG_FILE_END = ".config";
+  /** Rules configuration filename pattern */
+  private static final String CONFIG_FILE_NAME = "actions%s.config";
 
   /** The section for rules within rulebases */
   private static final String RULE_SECTION = "rule";
@@ -45,7 +41,7 @@
   /** The key for actions within rulebases */
   private static final String ACTION_KEY = "action";
 
-  private final Path sitePath;
+  private final Path itsPath;
   private final Rule.Factory ruleFactory;
   private final Condition.Factory conditionFactory;
   private final ActionRequest.Factory actionRequestFactory;
@@ -59,12 +55,12 @@
 
   @Inject
   public RuleBase(
-      @SitePath Path sitePath,
+      SitePaths sitePaths,
       Rule.Factory ruleFactory,
       Condition.Factory conditionFactory,
       ActionRequest.Factory actionRequestFactory,
       @PluginName String pluginName) {
-    this.sitePath = sitePath;
+    this.itsPath = sitePaths.etc_dir.normalize().resolve("its");
     this.ruleFactory = ruleFactory;
     this.conditionFactory = conditionFactory;
     this.actionRequestFactory = actionRequestFactory;
@@ -117,24 +113,19 @@
     rules = Lists.newArrayList();
 
     // Add global rules
-    File globalRuleFile = new File(sitePath.toFile(), ITS_CONFIG_FILE_START + ITS_CONFIG_FILE_END);
+    File globalRuleFile = itsPath.resolve(String.format(CONFIG_FILE_NAME, "")).toFile();
     addRulesFromFile(globalRuleFile);
 
     // Add its-specific rules
     File itsSpecificRuleFile =
-        new File(sitePath.toFile(), ITS_CONFIG_FILE_START + "-" + pluginName + ITS_CONFIG_FILE_END);
+        itsPath.resolve(String.format(CONFIG_FILE_NAME, "-" + pluginName)).toFile();
     addRulesFromFile(itsSpecificRuleFile);
 
     if (!globalRuleFile.exists() && !itsSpecificRuleFile.exists()) {
-      try {
-        log.warn(
-            "Neither global rule file {} nor Its specific rule file {} exist. Please configure rules.",
-            globalRuleFile.getCanonicalPath(),
-            itsSpecificRuleFile.getCanonicalPath());
-      } catch (IOException e) {
-        log.warn(
-            "Neither global rule file nor Its specific rule files exist. Please configure rules.");
-      }
+      log.warn(
+          "Neither global rule file {} nor Its specific rule file {} exist. Please configure rules.",
+          globalRuleFile,
+          itsSpecificRuleFile);
     }
   }
 
diff --git a/src/test/java/com/googlesource/gerrit/plugins/its/base/workflow/RuleBaseTest.java b/src/test/java/com/googlesource/gerrit/plugins/its/base/workflow/RuleBaseTest.java
index 371b9d5..076ce0a 100644
--- a/src/test/java/com/googlesource/gerrit/plugins/its/base/workflow/RuleBaseTest.java
+++ b/src/test/java/com/googlesource/gerrit/plugins/its/base/workflow/RuleBaseTest.java
@@ -22,9 +22,6 @@
 import com.google.inject.Guice;
 import com.google.inject.Injector;
 import com.googlesource.gerrit.plugins.its.base.testutil.LoggingMockingTestCase;
-import java.io.BufferedWriter;
-import java.io.File;
-import java.io.FileWriter;
 import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
@@ -46,8 +43,14 @@
   private boolean cleanupSitePath;
 
   private enum RuleBaseKind {
-    GLOBAL,
-    ITS,
+    GLOBAL("actions"),
+    ITS("actions-ItsTestName");
+
+    String fileName;
+
+    RuleBaseKind(String fileName) {
+      this.fileName = fileName + ".config";
+    }
   }
 
   public void testWarnNonExistingRuleBase() {
@@ -291,32 +294,9 @@
   }
 
   private void injectRuleBase(String rules, RuleBaseKind ruleBaseKind) throws IOException {
-    String baseName = "";
-    switch (ruleBaseKind) {
-      case GLOBAL:
-        baseName = "actions";
-        break;
-      case ITS:
-        baseName = "actions-ItsTestName";
-        break;
-      default:
-        fail("Unknown ruleBaseKind");
-    }
-    File ruleBaseFile =
-        new File(
-            sitePath.toFile(),
-            "etc" + File.separatorChar + "its" + File.separator + baseName + ".config");
-
-    File ruleBaseParentFile = ruleBaseFile.getParentFile();
-    if (!ruleBaseParentFile.exists()) {
-      assertTrue(
-          "Failed to create parent (" + ruleBaseParentFile + ") for " + "rule base",
-          ruleBaseParentFile.mkdirs());
-    }
-    try (FileWriter unbufferedWriter = new FileWriter(ruleBaseFile);
-        BufferedWriter writer = new BufferedWriter(unbufferedWriter)) {
-      writer.write(rules);
-    }
+    Path ruleBaseFile = sitePath.resolve("etc").resolve("its").resolve(ruleBaseKind.fileName);
+    Files.createDirectories(ruleBaseFile.getParent());
+    Files.write(ruleBaseFile, rules.getBytes());
   }
 
   @Override