diff --git a/lib/std.js b/lib/std.js
index ed70e25..9e0113c 100644
--- a/lib/std.js
+++ b/lib/std.js
@@ -71,7 +71,6 @@ function GetResource(ResourceName) {
     };
 
     // compatible under version 0.2.7.55
-    Enumerator.prototype.toArray = Array.from;
 })();
 
 // @deprecated Enumerator.toArray() is deprecated since version 0.2.7.56. Use Array.from()