diff --git a/.github/workflows/repo-sync.yml b/.github/workflows/repo-sync.yml
index 050c46045d..1e08ecd3c9 100644
--- a/.github/workflows/repo-sync.yml
+++ b/.github/workflows/repo-sync.yml
@@ -106,7 +106,9 @@ jobs:
               enablePullRequestAutoMerge(input: {
                 pullRequestId: $id,
                 mergeMethod: MERGE
-              })
+              }) {
+                clientMutationId
+              }
             }`
             const variables = {
               id: pullNodeId