diff --git a/foundation-sites/foundation-tests.ts b/foundation-sites/foundation-tests.ts
index ca5bf283a..8daba37ac 100644
--- a/foundation-sites/foundation-tests.ts
+++ b/foundation-sites/foundation-tests.ts
@@ -11,7 +11,10 @@ $(document).foundation();
 $(document).foundation('method');
 $(document).foundation(['method', 'method2']);
 
-function pluginList(){
+function pluginList() {
+
+    'use strict';
+
     return [
         'Abide',
         'Accordion',