diff --git a/client/coral-framework/services/i18n.js b/client/coral-framework/services/i18n.js
index 1a4910b21..c25a58769 100644
--- a/client/coral-framework/services/i18n.js
+++ b/client/coral-framework/services/i18n.js
@@ -13,7 +13,7 @@ import pt_BR from '../../../locales/pt_BR.yml';
 
 // Translations are happening at https://translate.lingohub.com/the-coral-project/dashboard
 
-const defaultLanguage = 'en';
+const defaultLanguage = process.env.TALK_DEFAULT_LAN;
 const translations = {...en, ...es, ...fr, ...pt_BR};
 
 let lang;
diff --git a/webpack.config.js b/webpack.config.js
index c555333bc..6e9917afc 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -111,7 +111,8 @@ const config = {
     new webpack.EnvironmentPlugin({
       'TALK_PLUGINS_JSON': '{}',
       'TALK_THREADING_LEVEL': '3',
-      'TALK_DEFAULT_STREAM_TAB': 'all'
+      'TALK_DEFAULT_STREAM_TAB': 'all',
+      'TALK_DEFAULT_LAN': 'en'
     })
   ],
   resolveLoader: {