diff --git a/.github/workflows/docker-publish.yml b/.github/workflows/docker-publish.yml
index 04d7eea1..3e17dbed 100644
--- a/.github/workflows/docker-publish.yml
+++ b/.github/workflows/docker-publish.yml
@@ -116,7 +116,7 @@ jobs:
           images: ${{ env.IMAGE_NAME }}
           tags: |
             type=raw,value={{branch}}
-            type=sha,prefix={{branch}}
+            type=sha,prefix={{branch}}-
 
       - name: Create manifest list and push
         working-directory: /tmp/digests