diff --git a/.github/workflows/docker-image.yml b/.github/workflows/docker-image.yml
index df5b363..49113b3 100644
--- a/.github/workflows/docker-image.yml
+++ b/.github/workflows/docker-image.yml
@@ -43,6 +43,6 @@ jobs:
         with:
           context: .
           push: true
-          file: ${{context}}/Dockerfile.ubuntu
+          file: ${{ context }}/Dockerfile.ubuntu
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}