diff --git a/lib/should.js b/lib/should.js
index <HASH>..<HASH> 100644
--- a/lib/should.js
+++ b/lib/should.js
@@ -1,4 +1,3 @@
-
 /*!
  * Should
  * Copyright(c) 2010 TJ Holowaychuk <tj@vision-media.ca>
@@ -80,7 +79,8 @@ Object.defineProperty(Object.prototype, 'should', {
   set: function(){},
   get: function(){
     return new Assertion(this);
-  }
+  },
+  configurable: true
 });
 
 /**
Do not attach `should` to my prototype permanently, thank you.