diff --git a/test_themes/static/src/systray_items/website_switcher.js b/test_themes/static/src/systray_items/website_switcher.js
index 9274cb1e1..3506f3924 100644
--- a/test_themes/static/src/systray_items/website_switcher.js
+++ b/test_themes/static/src/systray_items/website_switcher.js
@@ -36,7 +36,7 @@ patch(WebsiteSwitcherSystray.prototype, 'test_themes_website_switcher_systray',
                 ...elem.dataset,
                 ...this.tooltips[elem.id]
             };
-            return elem
+            return elem;
         });
     },