diff --git a/.github/workflows/docker-build.yml b/.github/workflows/docker-build.yml
index ee4ab97..bbd6e90 100644
--- a/.github/workflows/docker-build.yml
+++ b/.github/workflows/docker-build.yml
@@ -57,7 +57,7 @@ jobs:
             type=semver,pattern={{version}}
             type=semver,pattern=latest,enable={{is_tag}}
             type=raw,value=nightly,enable={{is_default_branch}}
-            type=ref,pattern={{ref_name}},enable={{is_default_branch}}
+            type=ref,pattern={{ref_name}},enable={{github.event_name == 'push' && is_default_branch}}
 
       - name: Build and export (multi-arch)
         uses: docker/build-push-action@v6