diff --git a/tools/python/xen/xend/XendConfig.py b/tools/python/xen/xend/XendConfig.py
index 375ba473a4..2b61760c1c 100644
--- a/tools/python/xen/xend/XendConfig.py
+++ b/tools/python/xen/xend/XendConfig.py
@@ -196,6 +196,7 @@ LEGACY_IMAGE_CFG = [
     ('sdl', int),
     ('vncdisplay', int),
     ('vncunused', int),
+    ('vncpasswd', str),    
 ]
 
 LEGACY_IMAGE_HVM_CFG = [