diff --git a/.github/workflows/auto-build.yml b/.github/workflows/auto-build.yml
index 726ef84e..fef13e45 100644
--- a/.github/workflows/auto-build.yml
+++ b/.github/workflows/auto-build.yml
@@ -48,7 +48,7 @@ jobs:
       - name: get changed files
         id: getfile
         run: |
-          echo "::set-output name=files::$(git diff-tree --no-commit-id --name-only -r ${{ github.sha }}| xargs)"
+          echo "::set-output name=files::$(git diff-tree --no-commit-id --name-only -r ${{ github.sha }} docker-mods/| xargs)"
       - name: Login to Docker Hub
         uses: docker/login-action@v1
         with: