diff --git a/kdevelop.spec b/kdevelop.spec
index 3da2432..b3b56dd 100644
--- a/kdevelop.spec
+++ b/kdevelop.spec
@@ -5,7 +5,7 @@ Name:    kdevelop
 Summary: Integrated Development Environment for C++/C
 Epoch:   9
 Version: 4.5.0
-Release: 1%{?dist}
+Release: 2%{?dist}
 
 License: GPLv2
 URL:     http://www.kdevelop.org/
@@ -31,6 +31,10 @@ BuildRequires: okteta-devel
 BuildRequires: valgrind-devel
 %endif
 
+# kdevelop-custom-buildsystem has been merged to kdevelop 4.5.0
+Provides:  kdevelop-custom-buildsystem = 9:%{version}-%{release}
+Obsoletes: kdevelop-custom-buildsystem < 1.2.1-5
+
 Requires: %{name}-libs%{?_isa} = %{epoch}:%{version}-%{release}
 Requires: git
 Requires: cmake
@@ -156,6 +160,9 @@ update-mime-database %{_kde4_datadir}/mime &> /dev/null
 
 
 %changelog
+* Mon Apr 29 2013 Radek Novacek <rnovacek@redhat.com> 9:4.5.0-2
+- Obsoletes and provides kdevelop-custom-buildsystem
+
 * Fri Apr 26 2013 Jan Grulich <jgrulich@redhat.com> - 9:4.5.0-1
 - Update to 4.5.0