From aa35b8f0f0cbdc58f0c139131d091c5e7d1c0be4 Mon Sep 17 00:00:00 2001
From: Tim Bates <tim@rumpuslabs.com>
Date: Sun, 15 Jul 2012 23:02:04 +0930
Subject: [PATCH] Markdown engine should not be nil

---
 middleman-core/lib/middleman-core/renderers/markdown.rb | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/middleman-core/lib/middleman-core/renderers/markdown.rb b/middleman-core/lib/middleman-core/renderers/markdown.rb
index 79df7d9d..f017f1f0 100644
--- a/middleman-core/lib/middleman-core/renderers/markdown.rb
+++ b/middleman-core/lib/middleman-core/renderers/markdown.rb
@@ -30,7 +30,7 @@ module Middleman
               if markdown_engine == :redcarpet
                 require "middleman-core/renderers/redcarpet"
                 ::Tilt.prefer(::Middleman::Renderers::RedcarpetTemplate)
-              elsif markdown_engine.nil?
+              elsif not markdown_engine.nil?
                 # Map symbols to classes
                 markdown_engine_klass = if markdown_engine.is_a? Symbol
                   engine = markdown_engine.to_s
@@ -54,4 +54,4 @@ module Middleman
     end
     
   end
-end
\ No newline at end of file
+end