zpool: symbol lookup error: zpool: undefined symbol: highbit

[tombii]

After upgrading zfs yesterday through apt-get upgrade, I get the following error when I run zpool:
zpool: symbol lookup error: zpool: undefined symbol: highbit

/var/log/apt/history.log:
Start-Date: 2015-04-19 21:31:36 (CEST)
Commandline: apt-get upgrade -y
zfs-dkms:amd64 (0.6.3-1.3-2wheezy, 0.6.4-1-2-wheezy)
zfsonlinux:amd64 (4, 6)
spl-dkms:amd64 (0.6.3-1.3-2wheezy, 0.6.4-1-wheezy)
libzpool2:amd64 (0.6.3-1.3-2wheezy, 0.6.4-1-2-wheezy)
libzfs2:amd64 (0.6.3-1.3-2wheezy, 0.6.4-1-2-wheezy)
spl:amd64 (0.6.3-1.3-2wheezy, 0.6.4-1-wheezy)
grub-pc:amd64 (2.01-22debian1+zfs3-0.6.3-2wheezy, 2.02-beta2.9-ZOL11-7aa9f6-wheezy)
grub-pc-bin:amd64 (2.01-22debian1+zfs3-0.6.3-2wheezy, 2.02-beta2.9-ZOL11-7aa9f6-wheezy)
grub-common:amd64 (2.01-22debian1+zfs3-0.6.3-2wheezy, 2.02-beta2.9-ZOL11-7aa9f6-wheezy), grub2-common:amd64 (2.01-22debian1+zfs3-0.6.3-2~wheezy, 2.02-beta2.9-ZOL11-7aa9f6-wheezy)
End-Date: 2015-04-19 21:35:02 (CEST)

/etc/apt/sources.list.d/zfsonlinux.list:

This file is installed by the zfsonlinux package.

deb http://archive.zfsonlinux.org/debian wheezy main

deb-src http://archive.zfsonlinux.org/debian wheezy main contrib

[tombii]

This was fixed with the new release of zfsutils that was posted today.
Preparing to replace zfsutils 0.6.3-1.3-2~wheezy (using .../zfsutils_0.6.4-1-2-wheezy_amd64.deb) ...

However, it will not install with a normal apt-get upgrade, you need to use aptitude safe-upgrade