diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 867c7ea74..6b08bdcdc 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -2,7 +2,7 @@ name: build
 on: [create]
 jobs:
   run:
-    runs-on: linux
+    runs-on: Linux
     strategy:
       matrix:
         php: