diff --git a/api.lua b/api.lua
index 41bd383..5ef189d 100644
--- a/api.lua
+++ b/api.lua
@@ -149,8 +149,12 @@ function maidroid.register_maidroid(product_name, def)
     inventory_image = def.inventory_image,
     stack_max = 1,
     on_use = function(itemstack, user, pointed_thing)
-      minetest.add_entity(pointed_thing.above, product_name)
-      return itemstack
+      print(pointed_thing.under, pointed_thing.above)
+      if pointed_thing.above ~= nil then
+	minetest.add_entity(pointed_thing.above, product_name)
+	return itemstack
+      end
+      return nil
     end
   })
 end