From d226bb70cf63b0a33750238f9fc0bb1f10bbcfa3 Mon Sep 17 00:00:00 2001
From: Alexander Machehin <alexander.machehin@gmail.com>
Date: Mon, 8 Apr 2013 21:54:46 +0600
Subject: [PATCH] [#19] fix undefined method 'downcase' for nil:NilClass

---
 lib/redcarpet/render/gitlab_html.rb | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/redcarpet/render/gitlab_html.rb b/lib/redcarpet/render/gitlab_html.rb
index 8234e2675..a3e3e6724 100644
--- a/lib/redcarpet/render/gitlab_html.rb
+++ b/lib/redcarpet/render/gitlab_html.rb
@@ -19,9 +19,10 @@ class Redcarpet::Render::GitlabHTML < Redcarpet::Render::HTML
     #
     #     ruby code here
     #
+    code_class = "class=\"#{language.downcase}\"" if language.present?
     <<-HTML
 
-       <pre><code class="#{language.downcase}">#{code}</code></pre>
+       <pre><code #{code_class}">#{code}</code></pre>
 
     HTML
   end