diff --git a/data/core/object.lua b/data/core/object.lua
index 0941ce5d..a57ac9e8 100644
--- a/data/core/object.lua
+++ b/data/core/object.lua
@@ -21,6 +21,14 @@ end
 
 
 function Object:is(T)
+  if getmetatable(self) == T then
+    return true
+  end
+  return false
+end
+
+
+function Object:extends(T)
   local mt = getmetatable(self)
   while mt do
     if mt == T then