diff --git a/.github/workflows/container.yml b/.github/workflows/container.yml
index 3466495..c988d42 100644
--- a/.github/workflows/container.yml
+++ b/.github/workflows/container.yml
@@ -47,13 +47,17 @@ jobs:
         id: buildx
         uses: docker/setup-buildx-action@v1
       
+      - id: read-docker-image-identifiers
+        name: Read Docker Image Identifiers
+        run: echo ::set-env name=IMAGE_REPOSITORY::$(echo ${{ github.repository }} | tr '[:upper:]' '[:lower:]')
+
       - name: Run build (base container)
         uses: docker/build-push-action@v2
         with:
           builder: ${{ steps.buildx.output.name }}
           push: true
           tags: |
-            ghcr.io/${{ github.repository }}:${{ steps.tagger.outputs.image_tag }}
+            ghcr.io/${{ env.IMAGE_REPOSITORY }}:${{ steps.tagger.outputs.image_tag }}
           target: base
           cache-from: type=local,src=~/cache
-          cache-to: type=local,dest=~/cache
\ No newline at end of file
+          cache-to: type=local,dest=~/cache