diff --git a/.github/workflows/build-push-ghcr.yml b/.github/workflows/build-push-ghcr.yml
index 369d766..b437653 100644
--- a/.github/workflows/build-push-ghcr.yml
+++ b/.github/workflows/build-push-ghcr.yml
@@ -20,6 +20,10 @@ jobs:
           username: ${{github.actor}}
           password: ${{secrets.GITHUB_TOKEN}}
 
+      - name: downcase REPO
+        run: |
+          echo "REPO=${GITHUB_REPOSITORY,,}" >>${GITHUB_ENV}
+
       - name: 'Build Inventory Image'
         env:
           REPO_NAME: '${{ github.event.repository.name }}'