diff --git a/pr-review/main.go b/pr-review/main.go
index d16919f..912afe1 100644
--- a/pr-review/main.go
+++ b/pr-review/main.go
@@ -67,6 +67,8 @@ func processPullRequestSync(h *common.RequestHandler) error {
 		return nil
 	}
 
+	h.Log("different ids: '%s' vs. '%s'", req.Pull_Request.Head.Ref, commitId)
+
 	commitMsg := fmt.Sprintf(`Sync PR
 
 Update to %s`, req.Pull_Request.Head.Sha)