diff --git a/libical.spec b/libical.spec
index 8eb85cf..4c5837f 100644
--- a/libical.spec
+++ b/libical.spec
@@ -1,7 +1,7 @@
 Summary:	Reference implementation of the iCalendar data type and serialization format
 Name:		libical
 Version:	2.0.0
-Release:	4%{?dist}
+Release:	5%{?dist}
 License:	LGPLv2 or MPLv1.1
 URL:		http://freeassociation.sourceforge.net/
 Source:		https://github.com/%{name}/%{name}/archive/v%{version}/%{name}-%{version}.tar.gz
@@ -10,6 +10,8 @@ Patch1:		libical-2.0.0-funcnamefix.patch
 
 BuildRequires:	bison, byacc, flex
 BuildRequires:	cmake
+BuildRequires:	pkgconfig(icu-i18n)
+BuildRequires:	pkgconfig(icu-uc)
 Requires:	tzdata
 
 %description
@@ -70,6 +72,9 @@ make test ARGS="-V" -C %{_target_platform}
 %{_includedir}/libical/
 
 %changelog
+* Tue Feb 02 2016 Milan Crha <mcrha@redhat.com> - 2.0.0-5
+- Build with libicu, to enable RSCALE support
+
 * Mon Feb 01 2016 Rex Dieter <rdieter@fedoraproject.org> 2.0.0-4
 - %%build: -DSHARED_ONLY=TRUE (#1303598)