diff --git a/.github/workflows/prebuild.yml b/.github/workflows/prebuild.yml
index eefe9d7..a5cddfb 100644
--- a/.github/workflows/prebuild.yml
+++ b/.github/workflows/prebuild.yml
@@ -42,7 +42,7 @@ jobs:
             npm test
           fi
       - name: Commit pre-built binary
-        if: github.event_name == 'push'
+        if: (github.event_name == 'pull_request' || (github.event_name == 'push' && contains(github.event.head_commit.message, 'CI=pre-build')))
         run: |
           if [ -n "$(git status --porcelain -- prebuilds)" ]; then
             git config --global user.name "GitHub Actions"