diff --git a/.github/workflows/build-docker.yml b/.github/workflows/build-docker.yml
index a62dc75..2de7190 100644
--- a/.github/workflows/build-docker.yml
+++ b/.github/workflows/build-docker.yml
@@ -13,6 +13,9 @@ jobs:
     
     - name: clean work directory
       uses: AutoModality/action-clean@v1
+      
+    - name: check files
+      run: ls -a
     
     - name: checkout repo
       uses: actions/checkout@v3