diff --git a/.github/workflows/onpr_automerge.yaml b/.github/workflows/onpr_automerge.yaml
index f30418b9b..cdc4597c1 100644
--- a/.github/workflows/onpr_automerge.yaml
+++ b/.github/workflows/onpr_automerge.yaml
@@ -32,6 +32,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - id: automerge
+        if: ${{ github.event.issue.pull_request }}
         name: automerge
         uses: "pascalgn/automerge-action@v0.16.2"
         env: