diff --git a/tools/python/xen/xend/PrettyPrint.py b/tools/python/xen/xend/PrettyPrint.py
index f17074fdfd..b0c0fe3440 100644
--- a/tools/python/xen/xend/PrettyPrint.py
+++ b/tools/python/xen/xend/PrettyPrint.py
@@ -252,7 +252,7 @@ class PrettyPrinter:
         self.block = self.block.parent
 
     def prettyprint(self, out=sys.stdout):
-        self.top.prettyprint(Line(out, self.width))
+        self.top.prettyprint(Line(out, self.width), self.width)
 
 class SXPPrettyPrinter(PrettyPrinter):
     """An SXP prettyprinter.