@@ -24,10 +24,14 @@ module Jekyll

   class ContentFilters < PostFilter

     include OctopressFilters

     def pre_render(post)

-      post.content = pre_filter(post.content)

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

+        post.content = pre_filter(post.content)

+      end

     end

     def post_render(post)

-      post.content = post_filter(post.content)

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

+        post.content = post_filter(post.content)

+      end

     end

   end

 end