diff --git a/lib/OpenLayers/Util.js b/lib/OpenLayers/Util.js
index 15952ca7d1..a62ac5b88e 100644
--- a/lib/OpenLayers/Util.js
+++ b/lib/OpenLayers/Util.js
@@ -112,7 +112,7 @@ OpenLayers.Util.removeItem = function(array, item) {
  * obj - {*}
  * 
  * Returns:
- * {Integer} The index at, which the first object was found in the array.
+ * {Integer} The index at which the first object was found in the array.
  *           If not found, returns -1.
  */
 OpenLayers.Util.indexOf = function(array, obj) {