Magicicada crashes when started

Ubuntu Desktop 13.04 AMD64

When starting Magicicada it crashes.

magicicada
Traceback (most recent call last):
  File "/usr/bin/magicicada", line 36, in <module>
    from magicicada.gui.gtk import MagicicadaUI
  File "/usr/lib/python2.7/dist-packages/magicicada/gui/gtk/__init__.py", line 24, in <module>
    from magicicada.gui.gtk.main import MagicicadaUI
  File "/usr/lib/python2.7/dist-packages/magicicada/gui/gtk/main.py", line 43, in <module>
    from magicicada.gui.gtk.operations import Operations
  File "/usr/lib/python2.7/dist-packages/magicicada/gui/gtk/operations.py", line 40, in <module>
    OPS_COMPLETED = _(u'Completed %s ago (%s)')
NameError: name '_' is not defined

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: magicicada 0.5-0ubuntu1
ProcVersionSignature: Ubuntu 3.8.0-19.30-generic 3.8.8
Uname: Linux 3.8.0-19-generic x86_64
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
Date: Tue May 7 08:37:15 2013
InstallationDate: Installed on 2013-04-26 (10 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
MarkForUpload: True
PackageArchitecture: all
SourcePackage: magicicada
UpgradeStatus: No upgrade log present (probably fresh install)