diff --git a/.gitea/workflows/build.yaml b/.gitea/workflows/build.yaml
index 1088a69..d237324 100644
--- a/.gitea/workflows/build.yaml
+++ b/.gitea/workflows/build.yaml
@@ -12,6 +12,11 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
+      - name: Isolate Docker auth
+        run: |
+          mkdir -p "$RUNNER_TEMP/docker-config"
+          echo "DOCKER_CONFIG=$RUNNER_TEMP/docker-config" >> "$GITHUB_ENV"
+
       - name: Login to Gitea Registry
         uses: docker/login-action@v3
         with: