diff --git a/lib/metalsmith.js b/lib/metalsmith.js
index 6dc9fc3a14..83a8675ce9 100644
--- a/lib/metalsmith.js
+++ b/lib/metalsmith.js
@@ -230,7 +230,6 @@ module.exports = metalsmith(__dirname) // __dirname defined by node.js: name of
 
       // Markdown engine options
       smartypants: true, // use "smart" typographic punctuation
-      gfm: true,
       pedantic: true,
       highlight: highlighter
     }