diff --git a/.gitea/workflows/build.yaml b/.gitea/workflows/build.yaml
index f037260..2b1fbed 100644
--- a/.gitea/workflows/build.yaml
+++ b/.gitea/workflows/build.yaml
@@ -57,13 +57,17 @@ jobs:
         id: meta
         run: |
           echo REPO_NAME=$(echo ${GITHUB_REPOSITORY} | awk -F"/" '{print $2}') >> $GITHUB_OUTPUT
+      - name: Extract branch name
+        shell: bash
+        run: echo $GITHUB_HEAD_REF | tr -cd '[:alnum:]' | sed s/^/REPO_BRANCH=/g >> $GITHUB_OUTPUT
+        id: extract_branch
       - name: Build and push Docker image
         uses: https://github.com/docker/build-push-action@v6
         with:
           context: .
           file: ./Dockerfile
           push: true
-          tags: "registry.mgrote.net/${{ steps.meta.outputs.REPO_NAME }}:latest,registry.mgrote.net/${{ steps.meta.outputs.REPO_NAME }}:${{ env.GITHUB_HEAD_REF }}"
+          tags: "registry.mgrote.net/${{ steps.meta.outputs.REPO_NAME }}:latest,registry.mgrote.net/${{ steps.meta.outputs.REPO_NAME }}:${{ steps.extract_branch.outputs.REPO_BRANCH }}"
       - name: Send notification
         uses: dawidd6/action-send-mail@v3
         if: failure()