diff --git a/lib/OpenLayers/Tile/UTFGrid.js b/lib/OpenLayers/Tile/UTFGrid.js
index 1b3708c7a6..98b021b97b 100644
--- a/lib/OpenLayers/Tile/UTFGrid.js
+++ b/lib/OpenLayers/Tile/UTFGrid.js
@@ -7,6 +7,7 @@
 /**
  * @requires OpenLayers/Tile.js
  * @requires OpenLayers/Format/JSON.js
+ * @requires OpenLayers/Request.js
  */
 
 /**