diff --git a/lib/webrobots/robotstxt.rb b/lib/webrobots/robotstxt.rb
index 74c9a85..0fa8201 100644
--- a/lib/webrobots/robotstxt.rb
+++ b/lib/webrobots/robotstxt.rb
@@ -1,7 +1,7 @@
 #
 # DO NOT MODIFY!!!!
 # This file is automatically generated by Racc 1.4.9
-# from Racc grammer file "".
+# from Racc grammar file "".
 #
 
 require 'racc/parser.rb'