diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 68daed6f..c18cc4a3 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -18,7 +18,7 @@ jobs:
 
       - uses: msys2/setup-msys2@v2
         with:
-          msystem: MSYSTEM
+          msystem: MSYS
           install: git base-devel msys2-devel
           update: true