diff --git a/src/prototype/lang/enumerable.js b/src/prototype/lang/enumerable.js
index f55eac347..8d6648748 100644
--- a/src/prototype/lang/enumerable.js
+++ b/src/prototype/lang/enumerable.js
@@ -218,8 +218,10 @@ var Enumerable = (function() {
     iterator = iterator || Prototype.K;
     var result = true;
     this.each(function(value, index) {
-      result = result && !!iterator.call(context, value, index, this);
-      if (!result) throw $break;
+      if (!iterator.call(context, value, index, this)) {
+          result = false;
+          throw $break;
+      }
     }, this);
     return result;
   }