command-not-found crashed

typing any command that's not on the FS, i get this reaction in bash:

root@linux:~# asdf
Sorry, command-not-found has crashed! Please file a bug report at:
https://bugs.launchpad.net/command-not-found/+filebug
Please include the following information with the report:

command-not-found version: 0.2.44
root@linux:~#

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: command-not-found 0.2.46ubuntu6
ProcVersionSignature: Ubuntu 3.2.0-37.58-generic 3.2.35
Uname: Linux 3.2.0-37-generic i686
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu17.2
Architecture: i386
Date: Thu May 23 18:20:40 2013
InstallationMedia: Xubuntu 12.04.2 LTS "Precise Pangolin" - Release i386 (20130213)
MarkForUpload: True
PackageArchitecture: all
SourcePackage: command-not-found
UpgradeStatus: No upgrade log present (probably fresh install)