@@ -24,12 +24,12 @@ module Jekyll

   class ContentFilters < PostFilter

     include OctopressFilters

     def pre_render(post)

-      if post.ext.match('html|textile|markdown|haml|slim|xml')

+      if post.ext.match('html|textile|markdown|md|haml|slim|xml')

         post.content = pre_filter(post.content)

       end

     end

     def post_render(post)

-      if post.ext.match('html|textile|markdown|haml|slim|xml')

+      if post.ext.match('html|textile|markdown|md|haml|slim|xml')

         post.content = post_filter(post.content)

       end

     end