diff --git a/src/bin/e_comp_wl.c b/src/bin/e_comp_wl.c
index 9b6a32fe0..fd603bb3f 100644
--- a/src/bin/e_comp_wl.c
+++ b/src/bin/e_comp_wl.c
@@ -9,6 +9,7 @@
 /* Resource Data Mapping: (wl_resource_get_user_data)
  * 
  * wl_surface == e_pixmap
+ * wl_region == eina_tiler
  * 
  */