diff --git a/GruntParser.js b/GruntParser.js
index 213fffe..87ef53a 100644
--- a/GruntParser.js
+++ b/GruntParser.js
@@ -20,6 +20,7 @@ define(function(require, exports, module){
             renameTask: noop,
             loadTasks: noop,
             loadNpmTasks: noop,
+            option: noop,
             warn: noop,
             fatal: noop
         };
@@ -45,4 +46,4 @@ define(function(require, exports, module){
         return targets;
     }
     exports.parse = parse;
-});
\ No newline at end of file
+});