diff --git a/.github/workflows/c-cpp.yml b/.github/workflows/c-cpp.yml
index 5d6f2946..5896fd91 100644
--- a/.github/workflows/c-cpp.yml
+++ b/.github/workflows/c-cpp.yml
@@ -8,7 +8,7 @@ on:
 
 jobs:
   build:
-    runs-on: ${{ matix.os }}   
+    runs-on: ${{ matrix.os }}   
     strategy: 
       matrix:
         os: [ubuntu-latest, ubuntu-20.04, ubuntu-18.04]