diff --git a/app/api/mobile/apis/memos.rb b/app/api/mobile/apis/memos.rb
index a72b9b6c..01f1e79e 100644
--- a/app/api/mobile/apis/memos.rb
+++ b/app/api/mobile/apis/memos.rb
@@ -35,7 +35,7 @@ module Mobile
             ip = @env['HTTP_X_REAL_IP']
             ua = UserAgent.find_by_ip(ip)
             if ua.blank?
-              UserAgent.create!(:key => params[:edu].strip, :ip => ip, :type => UserAgent::AD)
+              UserAgent.create!(:key => params[:edu].strip, :ip => ip, :type => UserAgent::USER_AD)
             end
           end
           MemosService.new.show params, current_user
diff --git a/app/controllers/account_controller.rb b/app/controllers/account_controller.rb
index eb4f1a82..ad49d1ad 100644
--- a/app/controllers/account_controller.rb
+++ b/app/controllers/account_controller.rb
@@ -380,7 +380,7 @@ class AccountController < ApplicationController
         # 注册时，记录是否是引流用户
         ip = request.remote_ip
         ua = UserAgent.find_by_ip(ip)
-        ua.update_column(:type, UserAgent::REGISTER) if ua
+        ua.update_column(:type, UserAgent::USER_REGISTER) if ua
         if !@user.new_record?
           self.logged_user = @user
           flash[:notice] = l(:notice_account_activated)
diff --git a/app/controllers/competition_teams_controller.rb b/app/controllers/competition_teams_controller.rb
index 9159cf07..563faffe 100644
--- a/app/controllers/competition_teams_controller.rb
+++ b/app/controllers/competition_teams_controller.rb
@@ -350,6 +350,6 @@ class CompetitionTeamsController < ApplicationController
     # 记录是否是引流用户的行为
     ip = request.remote_ip
     ua = UserAgent.find_by_ip(ip)
-    ua.update_column(:type, UserAgent::COMPETITION) if ua
+    ua.update_column(:type, UserAgent::USER_COMPETITION) if ua
   end
 end
diff --git a/app/models/user_agent.rb b/app/models/user_agent.rb
index 9c0e6cfe..acc45a8a 100644
--- a/app/models/user_agent.rb
+++ b/app/models/user_agent.rb
@@ -1,6 +1,6 @@
 class UserAgent < ActiveRecord::Base
 
-  AD = 1  # 广告宣传的引流
-  REGISTER = 2 # 引流注册
-  COMPETITION = 3 # 引流参加竞赛
+  USER_AD = 1  # 广告宣传的引流
+  USER_REGISTER = 2 # 引流注册
+  USER_COMPETITION = 3 # 引流参加竞赛
 end