diff --git a/java/com/google/gerrit/plugins/codeowners/validation/CodeOwnerConfigValidator.java b/java/com/google/gerrit/plugins/codeowners/validation/CodeOwnerConfigValidator.java
index f0023ff..86a206b 100644
--- a/java/com/google/gerrit/plugins/codeowners/validation/CodeOwnerConfigValidator.java
+++ b/java/com/google/gerrit/plugins/codeowners/validation/CodeOwnerConfigValidator.java
@@ -319,7 +319,7 @@
               "failed to validate code owner config files in revision %s"
                   + " (project = %s, branch = %s)",
               revCommit.getName(), branchNameKey.project(), branchNameKey.branch());
-      logger.atSevere().log(errorMessage);
+      logger.atSevere().withCause(e).log(errorMessage);
       throw new StorageException(errorMessage, e);
     }
   }