diff --git a/lib/OpenLayers/Layer/GoogleNG.js b/lib/OpenLayers/Layer/GoogleNG.js
index 7dc9e986f2..1d85396acb 100644
--- a/lib/OpenLayers/Layer/GoogleNG.js
+++ b/lib/OpenLayers/Layer/GoogleNG.js
@@ -5,6 +5,7 @@
 
 /**
  * @requires OpenLayers/Layer/XYZ.js
+ * @requires OpenLayers/Tile/Google.js
  */
 
 /**