2 files changed, 25 insertions, 1 deletions

diff --git a/src/stores/AppStore.js b/src/stores/AppStore.js
index 4ac8325d4..94ed308f3 100644
--- a/src/stores/AppStore.js
+++ b/src/stores/AppStore.js
@@ -15,6 +15,8 @@ import { gaEvent } from '../lib/analytics';
 
 import { getServiceIdsFromPartitions, removeServicePartitionDirectory } from '../helpers/service-helpers.js';
 
+const debug = require('debug')('AppStore');
+
 const { app } = remote;
 
 const defaultLocale = DEFAULT_APP_SETTINGS.locale;
@@ -279,13 +281,15 @@ export default class AppStore extends Store {
   }
 
   _setLocale() {
-    const locale = this.stores.settings.all.locale;
+    const { locale } = this.stores.user.data;
 
     if (locale && Object.prototype.hasOwnProperty.call(locales, locale) && locale !== this.locale) {
       this.locale = locale;
     } else if (!locale) {
       this.locale = this._getDefaultLocale();
     }
+
+    debug(`Set locale to "${this.locale}"`);
   }
 
   _getDefaultLocale() {
diff --git a/src/stores/UserStore.js b/src/stores/UserStore.js
index 7dbbd955b..c151f6d59 100644
--- a/src/stores/UserStore.js
+++ b/src/stores/UserStore.js
@@ -9,6 +9,8 @@ import Request from './lib/Request';
 import CachedRequest from './lib/CachedRequest';
 import { gaEvent } from '../lib/analytics';
 
+const debug = require('debug')('UserStore');
+
 // TODO: split stores into UserStore and AuthStore
 export default class UserStore extends Store {
   BASE_ROUTE = '/auth';
@@ -69,6 +71,11 @@ export default class UserStore extends Store {
     ]);
   }
 
+  setup() {
+    // Data migration
+    this._migrateUserLocale();
+  }
+
   // Routes
   get loginRoute() {
     return this.LOGIN_ROUTE;
@@ -292,4 +299,17 @@ export default class UserStore extends Store {
       this.id = null;
     }
   }
+
+  async _migrateUserLocale() {
+    await this.getUserInfoRequest._promise;
+
+    if (!this.data.locale) {
+      debug('Migrate "locale" to user data');
+      this.actions.user.update({
+        userData: {
+          locale: this.stores.app.locale,
+        },
+      });
+    }
+  }
 }