diff -Naur a/contrib/apparmor/docker-engine b/contrib/apparmor/docker-engine
--- a/contrib/apparmor/docker-engine	2015-08-11 18:35:27.000000000 +0200
+++ b/contrib/apparmor/docker-engine	2015-08-12 18:05:07.608444190 +0200
@@ -13,7 +13,6 @@
   mount -> /sys/**,
   mount -> /run/docker/netns/**,
 
-  umount,
   pivot_root,
   signal (receive) peer=@{profile_name},
   signal (receive) peer=unconfined,