diff --git a/gnucash.spec b/gnucash.spec
index d672a02..f1fb5c8 100644
--- a/gnucash.spec
+++ b/gnucash.spec
@@ -32,6 +32,8 @@ BuildRequires: libglade2-devel >= 2.3.6, libgnomeprint22-devel >= 2.8.0
 BuildRequires: libofx-devel, aqbanking-devel, docbook-style-xsl
 BuildRequires: desktop-file-utils, scrollkeeper, texinfo, libtool-ltdl-devel
 Requires: slib >= 3a1-5
+# hack
+Requires: perl(Date::Manip)
 Prereq: /sbin/ldconfig, scrollkeeper >= 0.3.4
 %define __perl_requires  %{nil}
 Obsoletes: gnucash-backend-postgres