diff --git a/src/calibre/devices/udisks.py b/src/calibre/devices/udisks.py
index 105326519a..9cb9b2adc5 100644
--- a/src/calibre/devices/udisks.py
+++ b/src/calibre/devices/udisks.py
@@ -5,7 +5,7 @@ __license__   = 'GPL v3'
 __copyright__ = '2010, Kovid Goyal <kovid@kovidgoyal.net>'
 __docformat__ = 'restructuredtext en'
 
-import dbus
+import os, dbus
 
 def node_mountpoint(node):
 
@@ -37,7 +37,7 @@ class UDisks(object):
         try:
             return unicode(d.FilesystemMount('',
                 ['auth_no_user_interaction', 'rw', 'noexec', 'nosuid',
-                'sync', 'nodev', 'uid=1000', 'gid=1000']))
+                'sync', 'nodev', 'uid=%d'%os.geteuid(), 'gid=%d'%os.getegid()]))
         except:
             # May be already mounted, check
             mp = node_mountpoint(str(device_node_path))