diff --git a/CHANGELOG.md b/CHANGELOG.md
index f754770..91f2e19 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,8 +1,19 @@
 # Changelog
 
 
+## v0.3.1 (2022-04-15)
+
+### Fix
+
+* Fixed macro button in markdown editor (fixes #3) [Michele Tessaro]
+
+
 ## v0.3.0 (2020-12-30)
 
+### Changes
+
+* Updated changelog for the new release. [Michele Tessaro]
+
 ### Fix
 
 * Fixed working on Redmine 4.1. [Michele Tessaro]
diff --git a/init.rb b/init.rb
index e052eb6..02f7d19 100644
--- a/init.rb
+++ b/init.rb
@@ -3,7 +3,7 @@
   name 'Redmine slideshow plugin'
   author 'Michele Tessaro'
   description 'Wiki macro plugin that transform wiki pages to slides'
-  version '0.3.0'
+  version '0.3.1'
   url 'https://github.com/mikitex70/redmine_reveal'
   author_url 'https://github.com/mikitex70'
   
diff --git a/lib/redmine_reveal/helpers/markdown_helper.rb b/lib/redmine_reveal/helpers/markdown_helper.rb
index 6e7d3c6..350f83a 100644
--- a/lib/redmine_reveal/helpers/markdown_helper.rb
+++ b/lib/redmine_reveal/helpers/markdown_helper.rb
@@ -43,7 +43,7 @@ def heads_for_wiki_formatter
         end
     end
     
-    module Redmine::WikiFormatting::Textile::Helper
+    module Redmine::WikiFormatting::Markdown::Helper
         prepend RedmineReveal_markdown
     end
 end