diff --git a/.github/workflows/basic-validation.yaml b/.github/workflows/basic-validation.yaml
index 8887a12..f030bd5 100644
--- a/.github/workflows/basic-validation.yaml
+++ b/.github/workflows/basic-validation.yaml
@@ -16,5 +16,7 @@ jobs:
     name: Basic validation
     uses: actions/reusable-workflows/.github/workflows/basic-validation.yml@main
     with:
-      operating-systems: 'ubuntu-latest, macos-latest'
+      operating-systems: |-
+        ubuntu-latest
+        macos-latest
       node-version: '20.x'
\ No newline at end of file