fixes #2419

app/controllers/users_controller.rb

@@ -55,6 +55,8 @@ class UsersController < ApplicationController
     cookies.delete(:favorite_tags_with_categories)
     if @user.errors.any?
       flash[:notice] = @user.errors.full_messages.join("; ")
+    else
+      flash[:notice] = "Settings updated"
     end
     respond_with(@user)
   end