diff --git a/.gitea/workflows/stage0.yaml b/.gitea/workflows/stage0.yaml
index e999400..ca16bb9 100644
--- a/.gitea/workflows/stage0.yaml
+++ b/.gitea/workflows/stage0.yaml
@@ -17,5 +17,7 @@ jobs:
           username: ${{ vars.CONTAINER_REGISTRY_USERNAME }}
           password: ${{ secrets.CONTAINER_REGISTRY_PASSWORD }}
       - name: Build
+        env:
+          CONTAINER_REGISTRY: ${{ vars.CONTAINER_REGISTRY }}
         run: |
-          make registry-bootstrap-stage0 REGISTRY_USERNAME=gitea.okami101.io/okami101/stagex
+          make registry-bootstrap-stage0 REGISTRY_USERNAME=$CONTAINER_REGISTRY/okami101/stagex