--- asymptote-2.21/GUI/xasy2asy.py	
+++ asymptote-2.21/GUI/xasy2asy.py	
@@ -18,8 +18,8 @@ from tempfile import mkdtemp
 
 # PIL support is now mandatory due to rotations
 try:
-  import ImageTk
-  import Image
+  from PIL import ImageTk
+  from PIL import Image
 except:
    pass
 
--- asymptote-2.21/GUI/xasyMainWin.py	
+++ asymptote-2.21/GUI/xasyMainWin.py	
@@ -40,8 +40,8 @@ from xasyActions import *
 import string
 
 try:
-  import ImageTk
-  import Image
+  from PIL import ImageTk
+  from PIL import Image
   PILAvailable = True
 except:
   PILAvailable = False