diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index db066c69e12e9..9cc49ea89e04a 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -224,7 +224,7 @@ jobs:
       - name: Add diff coverage report comment to PR
         if: always()
         env:
-          BRANCH_NAME: ${{ github.base_ref }}
+          BRANCH_NAME: ${{ github.sha }}
           COV_STATUS: ${{ env.COV_STATUS }}
           GH_TOKEN: ${{ github.token }}
           ORG_REPO: ${{ github.repository }}