diff --git a/data-structures/stack.js b/data-structures/stack.js
index 8c856cd..08b4260 100644
--- a/data-structures/stack.js
+++ b/data-structures/stack.js
@@ -73,9 +73,6 @@ Stack.prototype.pop = function() {
   
   var value = this._storage[--this._count];
   delete this._storage[this._count];
-  if (this._count < 0) {
-    this._count = 0;
-  }
   return value;
 };