diff --git a/.github/workflows/CI-master_tests.yml b/.github/workflows/CI-master_tests.yml
index 3bc2a5f..b644136 100644
--- a/.github/workflows/CI-master_tests.yml
+++ b/.github/workflows/CI-master_tests.yml
@@ -121,7 +121,7 @@ jobs:
     steps:
       - uses: actions/checkout@v2
         with:
-          ref: refs/heads/${{ github.head_ref }}
+          ref: ${{ github.head_ref }}
 
       
       - uses: actions/setup-go@v2