diff --git a/ghc-utf8-string.spec b/ghc-utf8-string.spec
index 2a12848..16380c9 100644
--- a/ghc-utf8-string.spec
+++ b/ghc-utf8-string.spec
@@ -1,30 +1,29 @@
-# cabal2spec-0.25.2
 # https://fedoraproject.org/wiki/Packaging:Haskell
 # https://fedoraproject.org/wiki/PackagingDrafts/Haskell
 
 %global pkg_name utf8-string
 
-%global common_summary Haskell UTF8 layer for IO and Strings
+%global common_summary Support for reading and writing UTF8 Strings
 
-%global common_description The utf8-string package provides operations\
+%global common_description A UTF8 layer for IO and Strings. The utf8-string package provides operations\
 for encoding UTF8 strings to Word8 lists and back, and for reading and writing\
 UTF8 without truncation. 
 
 Name:           ghc-%{pkg_name}
 Version:        0.3.7
-Release:        4%{?dist}
+Release:        5%{?dist}
 Summary:        %{common_summary}
 
-Group:          System Environment/Libraries
 License:        BSD
-# BEGIN cabal2spec
 URL:            http://hackage.haskell.org/package/%{pkg_name}
 Source0:        http://hackage.haskell.org/packages/archive/%{pkg_name}/%{version}/%{pkg_name}-%{version}.tar.gz
-ExclusiveArch:  %{ghc_arches}
+Patch0:         utf8-string-0.3.7-bytestring-in-base-flag.patch
+
 BuildRequires:  ghc-Cabal-devel
-BuildRequires:  ghc-rpm-macros %{!?without_hscolour:hscolour}
-# END cabal2spec
+BuildRequires:  ghc-rpm-macros
+# Begin cabal-rpm deps:
 BuildRequires:  ghc-bytestring-devel
+# End cabal-rpm deps
 
 %description
 %{common_description}
@@ -32,6 +31,7 @@ BuildRequires:  ghc-bytestring-devel
 
 %prep
 %setup -q -n %{pkg_name}-%{version}
+%patch0 -p1 -b .orig
 
 
 %build
@@ -54,6 +54,10 @@ BuildRequires:  ghc-bytestring-devel
 
 
 %changelog
+* Sat Nov 17 2012 Jens Petersen <petersen@redhat.com> - 0.3.7-5
+- update with cabal-rpm
+- unset bytestring-in-base flag
+
 * Thu Jul 19 2012 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 0.3.7-4
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_18_Mass_Rebuild
 
diff --git a/utf8-string-0.3.7-bytestring-in-base-flag.patch b/utf8-string-0.3.7-bytestring-in-base-flag.patch
new file mode 100644
index 0000000..d5ed8b3
--- /dev/null
+++ b/utf8-string-0.3.7-bytestring-in-base-flag.patch
@@ -0,0 +1,10 @@
+--- utf8-string-0.3.7/utf8-string.cabal~	2011-08-25 21:26:51.000000000 +0900
++++ utf8-string-0.3.7/utf8-string.cabal	2012-11-18 02:01:06.366515676 +0900
+@@ -15,6 +15,7 @@
+ cabal-version:      >= 1.2
+ 
+ flag bytestring-in-base
++  default: False
+ 
+ library
+   Ghc-options:        -W -O2