diff --git a/Mac/mkapplet.py b/Mac/mkapplet.py
index be20ecb..f294ae6 100644
--- a/Mac/mkapplet.py
+++ b/Mac/mkapplet.py
@@ -63,7 +63,7 @@
 	for filename in sys.argv[1:]:
 		process(template, filename)
 
-undefs = ('????', '    ', '\0\0\0\0')
+undefs = ('????', '    ', '\0\0\0\0', 'BINA')
 
 def process(template, filename):