diff --git a/README.rdoc b/README.rdoc
index 0e8bf9a..8fcf1f3 100644
--- a/README.rdoc
+++ b/README.rdoc
@@ -3,6 +3,8 @@
 チケットの既読／未読を管理し、チケット一覧に「既読」「読んだ日時」列を追加します。
 チケットを更新すると、そのチケットは未読チケットに戻ります。
 
+Redmine2.5.1で簡単な動作確認したのみ。
+
 
 == インストール
 
@@ -35,6 +37,11 @@
 
 == 更新履歴
 
+=== Version 0.0.4
+
+2.3のクエリの実装変更に仮対応。
+
+
 === Version 0.0.3
 
 "活動"にチケットを読んだことが残るようにしました。
diff --git a/init.rb b/init.rb
index 7acc6f0..5fb9352 100644
--- a/init.rb
+++ b/init.rb
@@ -2,13 +2,13 @@
 require 'already_read/issue_patch'
 require 'already_read/issues_controller_patch'
 require 'already_read/user_patch'
-require 'already_read/query_patch'
+require 'already_read/issue_query_patch'
 
 Redmine::Plugin.register :redmine_already_read do
   name 'Redmine Already Read plugin'
   author 'OZAWA Yasuhiro'
   description 'Markup read issues.'
-  version '0.0.3'
+  version '0.0.4'
   url 'https://github.com/ameya86/redmine_already_read'
   author_url 'http://blog.livedoor.jp/ameya86/'
 
diff --git a/lib/already_read/issue_query_patch.rb b/lib/already_read/issue_query_patch.rb
index 0cb6137..9a88e22 100644
--- a/lib/already_read/issue_query_patch.rb
+++ b/lib/already_read/issue_query_patch.rb
@@ -1,9 +1,10 @@
 require_dependency 'query'
+require_dependency 'issue_query'
 
-Query.add_available_column(QueryColumn.new(:already_read))
-Query.add_available_column(QueryColumn.new(:already_read_date))
+IssueQuery.add_available_column(QueryColumn.new(:already_read))
+IssueQuery.add_available_column(QueryColumn.new(:already_read_date))
 
-module AlreadyReadQueryPatch
+module AlreadyReadIssueQueryPatch
   def self.included(base) # :nodoc:
     base.send(:include, InstanceMethods) # obj.method
 
@@ -27,7 +28,7 @@ def available_filters_with_already_read
   end
 end
 
-class Query < ActiveRecord::Base
+class IssueQuery < Query
   # 既読／未読検出のSQL
   def sql_for_already_read_field(field, operator, value)
     db_table = AlreadyRead.table_name
@@ -47,4 +48,4 @@ def sql_for_already_read_field(field, operator, value)
   end
 end
 
-Query.send(:include, AlreadyReadQueryPatch)
+IssueQuery.send(:include, AlreadyReadIssueQueryPatch)