Index: trunk/packages/sipb-xen-www/code/controls.py
===================================================================
--- trunk/packages/sipb-xen-www/code/controls.py	(revision 559)
+++ trunk/packages/sipb-xen-www/code/controls.py	(revision 563)
@@ -141,5 +141,5 @@
     """Return a dictionary mapping machine names to dicts."""
     value_string = remctl('web', 'listvms')
-    value_dict = yaml.safe_load(value_string)
+    value_dict = yaml.load(value_string, yaml.CSafeLoader)
     return value_dict