diff --git a/resources/js/ext.uls.init.js b/resources/js/ext.uls.init.js
index 5fd58ee3..9fbd63d9 100644
--- a/resources/js/ext.uls.init.js
+++ b/resources/js/ext.uls.init.js
@@ -128,7 +128,7 @@
 	};
 
 	mw.uls.getAcceptLanguageList = function () {
-		return mw.config.get( 'wgULSAcceptLanguageList' ) || [];
+		return mw.config.get( 'wgULSAcceptLanguageList' ) || window.navigator.languages || [];
 	};
 
 	/**