--- a/debian/control	Mon Feb 21 15:14:42 2011 +0100
+++ b/debian/control	Fri May 31 14:15:48 2013 +0200
@@ -2,7 +2,7 @@
 Section: net
 Priority: extra
 Maintainer: Christian Arnold <arnold@schlittermann.de>
-Build-Depends: debhelper (>= 7)
+Build-Depends: debhelper (>= 7), libdate-manip-perl
 Standards-Version: 3.7.3
 
 Package: nagios-plugin-check-client-cert