diff --git a/resources/skins.minerva.scripts/menu.js b/resources/skins.minerva.scripts/menu.js
index 93de87d..6a99f14 100644
--- a/resources/skins.minerva.scripts/menu.js
+++ b/resources/skins.minerva.scripts/menu.js
@@ -13,7 +13,8 @@
 	 * @ignore
 	 */
 	function createMainMenu() {
-		var options = mw.config.get( 'wgMinervaMenuData' );
+		// Failsafe in case this is not defined e.g. T225423
+		var options = mw.config.get( 'wgMinervaMenuData', {} );
 
 		options.activator = '.header .main-menu-button';