diff --git a/src_data/scripts/lang.js b/src_data/scripts/lang.js
index 9be0df6..084f004 100644
--- a/src_data/scripts/lang.js
+++ b/src_data/scripts/lang.js
@@ -102,7 +102,7 @@ class Lang {
   }
   
   getSuitableLocale(locales) {
-    return locales.find(this.localeIsSupported) || this.defaultLocale;
+    return locales.find(this.localeIsSupported, this) || this.defaultLocale;
   }
   
   browserLocales(codeOnly = false) {