diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index e17257a..47a0853 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -72,11 +72,11 @@ jobs:
         password: ${{ secrets.GITHUB_TOKEN }}
     - name: downcase GITHUB_REPOSITORY
       run: |
-        echo "REPOSITORY_LOWERCASE=${GITHUB_REPOSITORY,,}" >>${GITHUB_ENV}
+        echo "REPOSITORY_LOWERCASE=${GITHUB_REPOSITORY,,}" >> ${GITHUB_ENV}
     - name: Build and push
       uses: docker/build-push-action@v5
       with:
         context: .
         file: ./src/Dockerfile
         push: true
-        tags: ghcr.io/nager/${{REPOSITORY_LOWERCASE}}:latest
+        tags: ghcr.io/nager/${{ env.REPOSITORY_LOWERCASE }}:latest