diff --git a/javatests/com/google/gerrit/server/query/project/AbstractQueryProjectsTest.java b/javatests/com/google/gerrit/server/query/project/AbstractQueryProjectsTest.java
index 4402249..18ee56d 100644
--- a/javatests/com/google/gerrit/server/query/project/AbstractQueryProjectsTest.java
+++ b/javatests/com/google/gerrit/server/query/project/AbstractQueryProjectsTest.java
@@ -23,6 +23,7 @@
 
 import com.google.common.base.CharMatcher;
 import com.google.common.collect.ImmutableMap;
+import com.google.errorprone.annotations.CanIgnoreReturnValue;
 import com.google.gerrit.common.Nullable;
 import com.google.gerrit.entities.Account;
 import com.google.gerrit.entities.Project;
@@ -362,6 +363,7 @@
     return gApi.projects().create(in).get();
   }
 
+  @CanIgnoreReturnValue
   protected ProjectInfo createProject(String name, String parent) throws Exception {
     ProjectInput in = new ProjectInput();
     in.name = name;
diff --git a/javatests/com/google/gerrit/server/query/project/BUILD b/javatests/com/google/gerrit/server/query/project/BUILD
index 53f9d9d..2ae73b3 100644
--- a/javatests/com/google/gerrit/server/query/project/BUILD
+++ b/javatests/com/google/gerrit/server/query/project/BUILD
@@ -21,6 +21,7 @@
         "//java/com/google/gerrit/testing:gerrit-test-util",
         "//lib:guava",
         "//lib:jgit",
+        "//lib/errorprone:annotations",
         "//lib/guice",
         "//lib/truth",
     ],