diff --git a/.github/workflows/run_tests.yml b/.github/workflows/run_tests.yml
index 1e28f72..a7aa25a 100644
--- a/.github/workflows/run_tests.yml
+++ b/.github/workflows/run_tests.yml
@@ -27,4 +27,4 @@ jobs:
     steps:
       - uses: actions/checkout@main
       - uses: goto-bus-stop/setup-zig@v2
-      - run: zig fmt --check build.zig lib/**/*.zig
+      - run: zig fmt --check build.zig src/*.zig src/**/*.zig