diff --git a/app/models/messenger.rb b/app/models/messenger.rb
index 42e263c..c9e192a 100644
--- a/app/models/messenger.rb
+++ b/app/models/messenger.rb
@@ -3,6 +3,11 @@ require 'net/http'
 class Messenger
   include Redmine::I18n
 
+  def self.markup_format(text)
+    # Redmine::WikiFormatting.html_parser.to_text(text)
+    ERB::Util.html_escape(text)
+  end
+
   def self.default_url_options
     { only_path: true, script_name: Redmine::Utils.relative_url_root }
   end
diff --git a/lib/redmine_messenger/patches/issue_patch.rb b/lib/redmine_messenger/patches/issue_patch.rb
index bf1fb95..c4f90ca 100644
--- a/lib/redmine_messenger/patches/issue_patch.rb
+++ b/lib/redmine_messenger/patches/issue_patch.rb
@@ -21,7 +21,7 @@ module RedmineMessenger
 
           attachment = {}
           if description.present? && Messenger.setting_for_project(project, :new_include_description)
-            attachment[:text] = ERB::Util.html_escape(description)
+            attachment[:text] = Messenger.markup_format(description)
           end
           attachment[:fields] = [{ title: I18n.t(:field_status),
                                    value: ERB::Util.html_escape(status.to_s),
@@ -64,7 +64,7 @@ module RedmineMessenger
 
           attachment = {}
           if current_journal.notes.present? && Messenger.setting_for_project(project, :updated_include_description)
-            attachment[:text] = ERB::Util.html_escape(current_journal.notes)
+            attachment[:text] = Messenger.markup_format(current_journal.notes)
           end
 
           fields = current_journal.details.map { |d| Messenger.detail_to_field d }
diff --git a/lib/redmine_messenger/patches/wiki_page_patch.rb b/lib/redmine_messenger/patches/wiki_page_patch.rb
index 009c6a6..40eefff 100644
--- a/lib/redmine_messenger/patches/wiki_page_patch.rb
+++ b/lib/redmine_messenger/patches/wiki_page_patch.rb
@@ -37,7 +37,7 @@ module RedmineMessenger
           attachment = nil
           unless content.comments.empty?
             attachment = {}
-            attachment[:text] = ERB::Util.html_escape(content.comments.to_s)
+            attachment[:text] = Messenger.markup_format(content.comments.to_s)
           end
 
           Messenger.speak(l(:label_messenger_wiki_updated,