diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index 71b12db2..67984429 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -55,6 +55,6 @@ jobs:
           heighliner-tag: v1.6.4
           github-organization: ${{ github.repository_owner }}
           github-repo: ${{ github.event.repository.name }}
-          git-ref: ${{ github.event.inputs.release_tag || github.ref }}
+          git-ref: ${{ github.event.inputs.release_tag || github.ref_name }}
           registry: ghcr.io/${{ env.OWNER_LC }}
           skip: ${{ github.event_name == 'pull_request' }}