diff --git a/tools/python/xen/util/blkif.py b/tools/python/xen/util/blkif.py
index dd4f287004..c9a9dc9e6a 100644
--- a/tools/python/xen/util/blkif.py
+++ b/tools/python/xen/util/blkif.py
@@ -67,6 +67,8 @@ def blkdev_uname_to_file(uname):
         (typ, fn) = uname.split(":")
         if typ == "phy" and not fn.startswith("/"):
             fn = "/dev/%s" %(fn,)
+        if typ == "tap":
+            (typ, fn) = fn.split(":", 1)
     return fn
 
 def mount_mode(name):