diff --git a/jail.py b/jail.py
index d364f87..96c74bd 100644
--- a/jail.py
+++ b/jail.py
@@ -12,7 +12,7 @@ def jail_run(path, command):
     finally:
         subprocess.run(['umount', os.path.join(path, 'dev')])
     if res.returncode != 0:
-        subprocess.run(['umount', os.path.join(path, 'dev')])
+        # subprocess.run(['umount', os.path.join(path, 'dev')])
         raise RuntimeError('Command failed')
 
 
@@ -30,6 +30,6 @@ def command_jail_run(args):
         jail_run(zfs_mountpoint(name), args.command)
         # subprocess.check_output(['jail', '-c', 'interface=lo1', 'ip4.addr=127.0.1.0', 'path=' + zfs_mountpoint(name), 'command', command])
     finally:
-        subprocess.run(['umount', zfs_mountpoint(name) + '/dev'])
+        # subprocess.run(['umount', zfs_mountpoint(name) + '/dev'])
         zfs_run(['zfs', 'destroy', '-f', name])
         # raise