diff --git a/lib/OpenLayers/Layer/TMS.js b/lib/OpenLayers/Layer/TMS.js
index 15d88e246a..8892bb82e8 100644
--- a/lib/OpenLayers/Layer/TMS.js
+++ b/lib/OpenLayers/Layer/TMS.js
@@ -5,6 +5,7 @@
 
 /**
  * @requires OpenLayers/Layer/Grid.js
+ * @requires OpenLayers/Tile/Image.js
  */
 
 /**