diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index b881efa0281..7427a783b98 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -14,6 +14,7 @@ env:
 jobs:
   build-and-push-image:
     name: PHP ${{ matrix.php-version }}, Fixer ${{ github.ref == 'refs/heads/master' && 'edge' || github.ref_name }}
+    if: github.repository == 'PHP-CS-Fixer/PHP-CS-Fixer'
     runs-on: ubuntu-latest
     strategy:
       matrix: