diff --git a/polymake.spec b/polymake.spec
index df045d6..0e57d53 100644
--- a/polymake.spec
+++ b/polymake.spec
@@ -2,7 +2,7 @@
 # rebuilt, because each BRs the other and both are linked against the old
 # version of the library.  Use this to rebuild polymake without Singular
 # support, rebuild Singular, then build polymake again with Singular support.
-%bcond_without singular
+%bcond_with singular
 
 # Date of the "perpetual beta" git snapshot
 %global gitdate  20141013
@@ -11,7 +11,7 @@
 
 Name:           polymake
 Version:        2.13
-Release:        18%{?gitdate:.git%{gitdate}}%{?dist}
+Release:        19%{?gitdate:.git%{gitdate}}%{?dist}
 Summary:        Algorithms on convex polytopes and polyhedra
 
 License:        GPLv2+
@@ -260,6 +260,9 @@ sed -i 's,%{buildroot},,' %{buildroot}%{polydir}/bundled/singular/conf.make
 %doc doc/*
 
 %changelog
+* Thu Mar 05 2015 Jitka Plesnikova <jplesnik@redhat.com> - 2.13-19.git20141013
+- Rebuild for perl 5.20.2
+
 * Wed Feb 04 2015 Petr Machata <pmachata@redhat.com> - 2.13-18.git20141013
 - Bump for rebuild.