diff --git a/app/api/mobile/apis/users.rb b/app/api/mobile/apis/users.rb
index b6d1db25c..063cfafae 100644
--- a/app/api/mobile/apis/users.rb
+++ b/app/api/mobile/apis/users.rb
@@ -14,7 +14,7 @@ module Mobile
           us = UsersService.new
           user = us.register params.merge(:password_confirmation => params[:password],
                                           :should_confirmation_password => true)
-          raise "register failed #{user.errors.full_messages}" if user.new_record?
+          raise "该邮箱已经被注册过了" if user.new_record?
           
           present :data, user, with: Mobile::Entities::User
           present :status, 0