diff --git a/ghc-zlib.spec b/ghc-zlib.spec
index 8e33bfe..14307ec 100644
--- a/ghc-zlib.spec
+++ b/ghc-zlib.spec
@@ -14,18 +14,18 @@ full zlib feature set.
 %global ghc_pkg_c_deps zlib-devel
 
 Name:           ghc-%{pkg_name}
-# part of haskell-platform-2011.2.0.0
+# part of haskell-platform-2011.2.0.1
 Version:        0.5.3.1
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        %{common_summary}
 
 Group:          System Environment/Libraries
 License:        BSD
 URL:            http://hackage.haskell.org/cgi-bin/hackage-scripts/package/%{pkg_name}
 Source0:        http://hackage.haskell.org/packages/archive/%{pkg_name}/%{version}/%{pkg_name}-%{version}.tar.gz
-# fedora ghc archs:
-ExclusiveArch:  %{ix86} x86_64 ppc alpha sparcv9 ppc64
-BuildRequires:  ghc-prof
+# ghc_excluded_archs is defined in redhat-rpm-config
+ExcludeArch:    %{ghc_excluded_archs}
+BuildRequires:  ghc-Cabal-devel
 BuildRequires:  ghc-rpm-macros
 BuildRequires:  hscolour
 %{?ghc_pkg_c_deps:BuildRequires:  %{ghc_pkg_c_deps}}
@@ -50,6 +50,9 @@ BuildRequires:  hscolour
 
 
 %changelog
+* Mon Jun 20 2011 Jens Petersen <petersen@redhat.com> - 0.5.3.1-4
+- BR ghc-Cabal-devel and use ghc_excluded_archs
+
 * Fri May 27 2011 Jens Petersen <petersen@redhat.com> - 0.5.3.1-3
 - update to cabal2spec-0.23: add ppc64