diff --git a/.github/workflows/c-cpp.yml b/.github/workflows/c-cpp.yml
index 8e8b490..29133f6 100644
--- a/.github/workflows/c-cpp.yml
+++ b/.github/workflows/c-cpp.yml
@@ -13,5 +13,7 @@ jobs:
 
     steps:
     - uses: actions/checkout@v3
+    - name: own
+      run: 'chmod 777 build'
     - name: build
       run: ./build