diff --git a/js/services/configService.js b/js/services/configService.js
index 4278e5215..f34013165 100644
--- a/js/services/configService.js
+++ b/js/services/configService.js
@@ -1,6 +1,6 @@
 'use strict';
 
-angular.module('copayApp.services').factory('configService', function(localstorageService) {
+angular.module('copayApp.services').factory('configService', function(localstorageService, gettextCatalog) {
   var root = {};
 
   root.set = function(opts, cb) {
@@ -8,6 +8,9 @@ angular.module('copayApp.services').factory('configService', function(localstora
     if (opts.logLevel)
       copay.logger.setLevel(opts.logLevel);
 
+    if (opts.defaultLanguage)
+      gettextCatalog.currentLanguage = opts.defaultLanguage;
+
     localstorageService.getItem('config', function(err, oldOpsStr) {
 
       var oldOpts = {};