diff --git a/java/com/google/gerrit/plugins/codeowners/validation/CodeOwnerConfigValidator.java b/java/com/google/gerrit/plugins/codeowners/validation/CodeOwnerConfigValidator.java
index 17235cd..9458289 100644
--- a/java/com/google/gerrit/plugins/codeowners/validation/CodeOwnerConfigValidator.java
+++ b/java/com/google/gerrit/plugins/codeowners/validation/CodeOwnerConfigValidator.java
@@ -872,10 +872,11 @@
             importType,
             codeOwnerConfigFilePath,
             String.format(
-                "'%s' does not exist (project = %s, branch = %s)",
+                "'%s' does not exist (project = %s, branch = %s, revision = %s)",
                 codeOwnerConfigReference.filePath(),
                 keyOfImportedCodeOwnerConfig.branchNameKey().project().get(),
-                keyOfImportedCodeOwnerConfig.branchNameKey().shortName()));
+                keyOfImportedCodeOwnerConfig.branchNameKey().shortName(),
+                revision.get().name()));
       }
     } catch (StorageException storageException) {
       if (getInvalidConfigCause(storageException).isPresent()) {
diff --git a/javatests/com/google/gerrit/plugins/codeowners/acceptance/api/CodeOwnerConfigValidatorIT.java b/javatests/com/google/gerrit/plugins/codeowners/acceptance/api/CodeOwnerConfigValidatorIT.java
index fe9bdc1..8a69e44 100644
--- a/javatests/com/google/gerrit/plugins/codeowners/acceptance/api/CodeOwnerConfigValidatorIT.java
+++ b/javatests/com/google/gerrit/plugins/codeowners/acceptance/api/CodeOwnerConfigValidatorIT.java
@@ -1355,13 +1355,15 @@
         r,
         "invalid code owner config files",
         String.format(
-            "invalid %s import in '%s': '%s' does not exist (project = %s, branch = master)",
+            "invalid %s import in '%s': '%s' does not exist (project = %s, branch = master,"
+                + " revision = %s)",
             importType.getType(),
             codeOwnerConfigOperations.codeOwnerConfig(keyOfImportingCodeOwnerConfig).getFilePath(),
             codeOwnerConfigOperations
                 .codeOwnerConfig(keyOfNonExistingCodeOwnerConfig)
                 .getFilePath(),
-            project.get()));
+            project.get(),
+            r.getCommit().name()));
   }
 
   @Test