diff --git a/.gitea/actions/build/action.yml b/.gitea/actions/build/action.yml
index 0aacaee..8f2f90d 100644
--- a/.gitea/actions/build/action.yml
+++ b/.gitea/actions/build/action.yml
@@ -41,7 +41,7 @@ runs:
       uses: docker/build-push-action@v6
       with:
         push: true
-        tags: ${{ vars.INSTANCE_URL }}/${REPOSITORY}:${{ inputs.tag }}
+        tags: '${{ vars.INSTANCE_URL }}/${REPOSITORY}:${{ inputs.tag }}'
 
     - name: Set output
       shell: bash