diff --git a/backbone.js b/backbone.js
index 640b7ea5d..7366e2fe5 100644
--- a/backbone.js
+++ b/backbone.js
@@ -770,12 +770,8 @@
   // Splices `insert` into `array` at index `at`.
   var splice = function(array, insert, at) {
     at = Math.min(Math.max(at, 0), array.length);
-    var tail = Array(array.length - at);
-    var length = insert.length;
-    var i;
-    for (i = 0; i < tail.length; i++) tail[i] = array[i + at];
-    for (i = 0; i < length; i++) array[i + at] = insert[i];
-    for (i = 0; i < tail.length; i++) array[i + length + at] = tail[i];
+    var args = [at, 0].concat(insert);
+    Array.prototype.splice.apply(array, args);
   };
 
   // Define the Collection's inheritable methods.