diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 8fd7fd7..80bbd1c 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -49,8 +49,8 @@ jobs:
       - name: Building in Linux
         if: ${{ startsWith(matrix.os, 'ubuntu') }}
         env:
-          - CC: clang-15
-          - CXX: clang-15++
+          CC: clang-15
+          CXX: clang-15++
         run: sh build.sh
 
 ## macOS ##