diff --git a/app/js/lib/mtproto_wrapper.js b/app/js/lib/mtproto_wrapper.js
index 6ea95e85..ea7bd883 100644
--- a/app/js/lib/mtproto_wrapper.js
+++ b/app/js/lib/mtproto_wrapper.js
@@ -613,7 +613,7 @@ angular.module('izhukov.mtproto.wrapper', ['izhukov.utils', 'izhukov.mtproto'])
   };
 })
 
-.service('MtpSingleInstanceService', function ($rootScope, $interval, Storage, AppRuntimeManager, IdleManager, ErrorService, MtpNetworkerFactory) {
+.service('MtpSingleInstanceService', function (_, $rootScope, $interval, Storage, AppRuntimeManager, IdleManager, ErrorService, MtpNetworkerFactory) {
 
   var instanceID = nextRandomInt(0xFFFFFFFF);
   var started = false;
@@ -664,7 +664,7 @@ angular.module('izhukov.mtproto.wrapper', ['izhukov.utils', 'izhukov.mtproto'])
           else if (idleInstance.time > time - 10000 &&
                    time > errorShowTime) {
 
-            ErrorService.show({error: {type: 'MULTIPLE_TABS_OPEN'}});
+            ErrorService.alert(_('error_modal_warning_title'), _('error_modal_multiple_open_tabs'));
             errorShowTime += tsNow() + 60000;
           }
         }
diff --git a/app/js/locales/en-us.json b/app/js/locales/en-us.json
index f0031597..debf415a 100644
--- a/app/js/locales/en-us.json
+++ b/app/js/locales/en-us.json
@@ -225,7 +225,7 @@
 	"error_modal_flood_description": "You are performing too many actions. Please try again later.",
 	"error_modal_internal_description": "Internal server error occured. Please try again later.",
 	"error_modal_tech_details": "Technical details here",
-	"error_modal_multiple_open_tabs": "Telegram Web doesn't support working in multiple tabs. Please close other app instances.",
+	"error_modal_multiple_open_tabs": "Please close other Telegram app tabs.",
 
 
 	"head_new_group": "New Group",
diff --git a/app/partials/desktop/error_modal.html b/app/partials/desktop/error_modal.html
index 341b425f..c3f2ca78 100644
--- a/app/partials/desktop/error_modal.html
+++ b/app/partials/desktop/error_modal.html
@@ -5,7 +5,6 @@
   <div class="modal-body">
 
     <h4 ng-if="error" class="modal_simple_header" ng-switch="error.type">
-      <span ng-switch-when="MULTIPLE_TABS_OPEN" my-i18n="error_modal_warning_title"></span>
       <span ng-switch-default ng-switch="error.code">
         <span ng-switch-when="400" my-i18n="error_modal_bad_request_title"></span>
         <span ng-switch-when="401" my-i18n="error_modal_unauthorized_title"></span>
@@ -36,7 +35,6 @@
       <span ng-switch-when="PHONEBOOK_GET_CONTACTS_FAILED" my-i18n="error_modal_phonebook_required_description"></span>
       <span ng-switch-when="USERNAME_INVALID" my-i18n="error_modal_username_invalid_description"></span>
       <span ng-switch-when="USERNAME_OCCUPIED" my-i18n="error_modal_username_occupied_description"></span>
-      <span ng-switch-when="MULTIPLE_TABS_OPEN" my-i18n="error_modal_multiple_open_tabs"></span>
 
 
       <div ng-switch-default ng-switch="error.code">