diff --git a/.github/workflows/comment_on_pr.yaml b/.github/workflows/comment_on_pr.yaml
index 4f12ff16c..60183667d 100644
--- a/.github/workflows/comment_on_pr.yaml
+++ b/.github/workflows/comment_on_pr.yaml
@@ -49,7 +49,7 @@ jobs:
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           delete_user_name: github-actions[bot]
-          issue_number: ${{ github.event.number }}
+          issue_number: ${{ env.PR_NUMBER }}
 
       - name: Update Comment
         env: