diff --git a/.github/workflows/unit-test.yml b/.github/workflows/unit-test.yml
index 61088e89..9683f55f 100644
--- a/.github/workflows/unit-test.yml
+++ b/.github/workflows/unit-test.yml
@@ -47,6 +47,11 @@ jobs:
       - name: Checkout Code
         uses: actions/checkout@v2
 
+      - name: Keep .github only
+        run: |
+          rm -rf *
+          ls -l
+
       - name: Checkout Kun
         uses: actions/checkout@v2
         with:
@@ -71,6 +76,10 @@ jobs:
         with:
           path: xiang
 
+      - name: Keep .github only
+        run: |
+          ls -l .
+
       - name: Setup ${{ matrix.db }}
         uses: ./.github/actions/setup-db
         with: