diff --git a/lib/redmine_messenger/patches/contact_patch.rb b/lib/redmine_messenger/patches/contact_patch.rb
index c19b181..ff6dc7a 100644
--- a/lib/redmine_messenger/patches/contact_patch.rb
+++ b/lib/redmine_messenger/patches/contact_patch.rb
@@ -1,12 +1,13 @@
 module RedmineMessenger
   module Patches
     module ContactPatch
-      def self.included(base)
-        base.include InstanceMethods
-        base.class_eval do
-          after_create_commit :send_messenger_create
-          after_update_commit :send_messenger_update
-        end
+      extend ActiveSupport::Concern
+
+      included do
+        include InstanceMethods
+
+        after_create_commit :send_messenger_create
+        after_update_commit :send_messenger_update
       end
 
       module InstanceMethods
diff --git a/lib/redmine_messenger/patches/db_entry_patch.rb b/lib/redmine_messenger/patches/db_entry_patch.rb
index 0d47798..af3e1d2 100644
--- a/lib/redmine_messenger/patches/db_entry_patch.rb
+++ b/lib/redmine_messenger/patches/db_entry_patch.rb
@@ -1,12 +1,13 @@
 module RedmineMessenger
   module Patches
     module DbEntryPatch
-      def self.included(base)
-        base.include InstanceMethods
-        base.class_eval do
-          after_create_commit :send_messenger_create
-          after_update_commit :send_messenger_update
-        end
+      extend ActiveSupport::Concern
+
+      included do
+        include InstanceMethods
+
+        after_create_commit :send_messenger_create
+        after_update_commit :send_messenger_update
       end
 
       module InstanceMethods
diff --git a/lib/redmine_messenger/patches/issue_patch.rb b/lib/redmine_messenger/patches/issue_patch.rb
index 5010ad1..4b87d50 100644
--- a/lib/redmine_messenger/patches/issue_patch.rb
+++ b/lib/redmine_messenger/patches/issue_patch.rb
@@ -1,12 +1,13 @@
 module RedmineMessenger
   module Patches
     module IssuePatch
-      def self.included(base)
-        base.include InstanceMethods
-        base.class_eval do
-          after_create_commit :send_messenger_create
-          after_update_commit :send_messenger_update
-        end
+      extend ActiveSupport::Concern
+
+      included do
+        include InstanceMethods
+
+        after_create_commit :send_messenger_create
+        after_update_commit :send_messenger_update
       end
 
       module InstanceMethods
diff --git a/lib/redmine_messenger/patches/password_patch.rb b/lib/redmine_messenger/patches/password_patch.rb
index 94cdeae..f4878f1 100644
--- a/lib/redmine_messenger/patches/password_patch.rb
+++ b/lib/redmine_messenger/patches/password_patch.rb
@@ -1,12 +1,13 @@
 module RedmineMessenger
   module Patches
     module PasswordPatch
-      def self.included(base)
-        base.include InstanceMethods
-        base.class_eval do
-          after_create_commit :send_messenger_create
-          after_update_commit :send_messenger_update
-        end
+      extend ActiveSupport::Concern
+
+      included do
+        include InstanceMethods
+
+        after_create_commit :send_messenger_create
+        after_update_commit :send_messenger_update
       end
 
       module InstanceMethods
diff --git a/lib/redmine_messenger/patches/wiki_page_patch.rb b/lib/redmine_messenger/patches/wiki_page_patch.rb
index c104fcd..56b0faa 100644
--- a/lib/redmine_messenger/patches/wiki_page_patch.rb
+++ b/lib/redmine_messenger/patches/wiki_page_patch.rb
@@ -1,12 +1,13 @@
 module RedmineMessenger
   module Patches
     module WikiPagePatch
-      def self.included(base)
-        base.include InstanceMethods
-        base.class_eval do
-          after_create_commit :send_messenger_create
-          after_update_commit :send_messenger_update
-        end
+      extend ActiveSupport::Concern
+
+      included do
+        include InstanceMethods
+
+        after_create_commit :send_messenger_create
+        after_update_commit :send_messenger_update
       end
 
       module InstanceMethods