diff --git a/alex.spec b/alex.spec
index c4d1e33..0d24b78 100644
--- a/alex.spec
+++ b/alex.spec
@@ -1,15 +1,14 @@
 Name:           alex
-# part of haskell-platform-2011.1.0.1
+# part of haskell-platform-2011.2.0.1
 Version:        2.3.5
-Release:        4%{?dist}
+Release:        5%{?dist}
 Summary:        A lexer generator for Haskell
 
 Group:          Development/Tools
 License:        BSD
 URL:            http://hackage.haskell.org/package/%{name}
 Source0:        http://hackage.haskell.org/packages/archive/%{name}/%{version}/%{name}-%{version}.tar.gz
-# ghc_excluded_archs is defined in redhat-rpm-config
-ExcludeArch:    %{ghc_excluded_archs}
+ExclusiveArch:  %{ghc_arches}
 BuildRequires:  ghc-Cabal-devel
 BuildRequires:  ghc-rpm-macros
 BuildRequires:  autoconf docbook-style-xsl libxslt
@@ -46,6 +45,9 @@ cd ..
 
 
 %changelog
+* Tue Jun 21 2011 Jens Petersen <petersen@redhat.com> - 2.3.5-5
+- ghc_arches replaces ghc_excluded_archs
+
 * Mon Jun 20 2011 Jens Petersen <petersen@redhat.com> - 2.3.5-4
 - BR ghc-Cabal-devel
 - use ghc_excluded_archs