diff --git a/config.js b/config.js
index 67127187a..0f9747d7b 100644
--- a/config.js
+++ b/config.js
@@ -516,7 +516,7 @@ var config = {
     // Hides the dominant speaker name badge that hovers above the toolbox
     // hideDominantSpeakerBadge: false,
 
-    // Default language for the user interface.
+    // Default language for the user interface. Cannot be overwritten.
     // defaultLanguage: 'en',
 
     // Disables profile and the edit of all fields from the profile settings (display name and email)
diff --git a/react/features/base/config/configWhitelist.js b/react/features/base/config/configWhitelist.js
index 982adf133..deebb0824 100644
--- a/react/features/base/config/configWhitelist.js
+++ b/react/features/base/config/configWhitelist.js
@@ -81,7 +81,6 @@ export default [
     'brandingRoomAlias',
     'debug',
     'debugAudioLevels',
-    'defaultLanguage',
     'defaultLocalDisplayName',
     'defaultRemoteDisplayName',
     'desktopSharingFrameRate',