diff --git a/gds/elements.py b/gds/elements.py
index 1de7634..fafa6aa 100644
--- a/gds/elements.py
+++ b/gds/elements.py
@@ -14,11 +14,11 @@ class Element(object):
     def __init__(self):
         self.elflags = 0
         self.plex    = 0
-        self.datatype = 0
-
+        
 class Drawable(object):
     def __init__(self):
         self.layer   = 0
+        self.datatype = 0
 
 class Boundary(Element, Drawable):
     def __init__(self):