diff --git a/lib/magic_encoding.rb b/lib/magic_encoding.rb
index feaa492..5e4b796 100644
--- a/lib/magic_encoding.rb
+++ b/lib/magic_encoding.rb
@@ -21,6 +21,7 @@ def self.process(options)
 
 		extensions = {
 			'rb' => '# {text}',
+			'rake' => '# {text}',
 			'haml' => '-# {text}',
 		}