diff --git a/.github/workflows/portainer-updater.yml b/.github/workflows/portainer-updater.yml
index effd261..f1a1c93 100644
--- a/.github/workflows/portainer-updater.yml
+++ b/.github/workflows/portainer-updater.yml
@@ -77,7 +77,7 @@ jobs:
         uses: docker/build-push-action@v6.7.0
         with:
           context: .
-          tags: ${{ env.DOCKER_HUB_REPO }}:${CONTAINER_IMAGE_TAG}
+          tags: ${{ env.DOCKER_HUB_REPO }}:$CONTAINER_IMAGE_TAG
           build-args: |
             GIT_COMMIT=$(git log -1 --format=%h)
           platforms: ${{ matrix.config.platform }}/${{ matrix.config.arch }}
@@ -91,7 +91,7 @@ jobs:
         uses: docker/build-push-action@v6.7.0
         with:
           context: .
-          tags: ${{ env.DOCKER_HUB_REPO }}:${CONTAINER_IMAGE_TAG}
+          tags: ${{ env.DOCKER_HUB_REPO }}:$CONTAINER_IMAGE_TAG
           build-args: |
             GIT_COMMIT=$(git log -1 --format=%h)
             OSVERSION=${{ matrix.config.version }}