diff --git a/tools/python/xen/xend/XendNode.py b/tools/python/xen/xend/XendNode.py
index d8eba55d4c..a1275dc47f 100644
--- a/tools/python/xen/xend/XendNode.py
+++ b/tools/python/xen/xend/XendNode.py
@@ -36,7 +36,7 @@ class XendNode:
     def reboot(self):
         return 0
 
-    def notify(self, uri):
+    def notify(self, _):
         return 0
     
     def cpu_bvt_slice_set(self, ctx_allow):