diff --git a/.github/workflows/go-test.yaml b/.github/workflows/go-test.yaml
index 9f251379..1a361ed9 100644
--- a/.github/workflows/go-test.yaml
+++ b/.github/workflows/go-test.yaml
@@ -56,6 +56,7 @@ jobs:
           body-includes: Go test coverage
       - name: Post comment
         uses: peter-evans/create-or-update-comment@71345be0265236311c031f5c7866368bd1eff043 # v4
+        if: github.event.pull_request.head.repo.full_name == github.repository
         with:
           comment-id: ${{ steps.existing-comment.outputs.comment-id }}
           issue-number: ${{ github.event.pull_request.number }}