diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index e0e8cec..8578573 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -26,7 +26,8 @@ jobs:
       - name: Set image name (lowercase)
         id: meta
         run: |
-          echo "repo=${{ toLower(github.repository) }}" >> $GITHUB_OUTPUT
+          REPO=$(git config --get remote.origin.url | sed -n 's|.*[:/]\([^/]\+\/[^.]\+\).*|\1|p')
+          echo "repo=$(echo "$REPO" | tr '[:upper:]' '[:lower:]')" >> $GITHUB_OUTPUT
 
       - name: Log in to Gitea Container Registry
         uses: docker/login-action@v3