diff --git a/scripts/data-validate.js b/scripts/data-validate.js
index 01f4ff15..de719696 100644
--- a/scripts/data-validate.js
+++ b/scripts/data-validate.js
@@ -40,4 +40,6 @@ async function main() {
   await communicateValidationOutcome(errors, failedUrls, data);
 }
 
-main();
+if (require.main === module) {
+  main();
+}