diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 7636af41..76a94739 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -49,7 +49,7 @@ jobs:
             type=raw,value=latest,enable=${{ endsWith(github.ref, github.event.repository.default_branch) }}
             type=ref,event=branch
             type=ref,event=tag
-            type=raw,value=${{github.head_ref}}-{{date 'YYYYMMDD'}}-{{sha}}
+            type=raw,value={{branch}}-{{date 'YYYYMMDD'}}-{{sha}},enable=${{ endsWith(github.ref, github.event.repository.default_branch) }}
           flavor: |
             latest=false
       - name: Login to GitHub Container Registry