diff --git a/ghc-rpm-macros.ghc b/ghc-rpm-macros.ghc
index 2e24f6b..87c0998 100644
--- a/ghc-rpm-macros.ghc
+++ b/ghc-rpm-macros.ghc
@@ -92,7 +92,7 @@ find %{buildroot} -type f -exec sh -c "file {} | grep -q 'dynamically linked'" \
 # ghc_lib_build_without_haddock [name] [version]
 %ghc_lib_build_without_haddock()\
 %global debug_package %{nil}\
-%cabal_configure %{!?without_prof:-p} %{!?ghc_without_shared:--enable-shared} %{?pkg_name:--htmldir=%{ghclibdocdir}/%{pkg_name}-%{version}} %{?1:--docdir=%{_docdir}/ghc-%1-%2 --htmldir=%{ghclibdocdir}/%1-%2} %{?ghc_with_lib_for_ghci:--enable-library-for-ghci}\
+%cabal_configure %{!?without_prof:-p} %{!?ghc_without_shared:--enable-shared} %{?pkg_name:--htmldir=%{ghclibdocdir}/%{pkg_name}-%{version}} %{?1:--docdir=%{_docdir}/ghc-%1-%2 --htmldir=%{ghclibdocdir}/%1-%2} %{?ghc_with_lib_for_ghci:--enable-library-for-ghci} --ghc-option=-O2\
 %cabal build\
 %{nil}
 
diff --git a/ghc-rpm-macros.spec b/ghc-rpm-macros.spec
index cfb2aa9..1f7e6e1 100644
--- a/ghc-rpm-macros.spec
+++ b/ghc-rpm-macros.spec
@@ -6,7 +6,7 @@
 #%%global without_hscolour 1
 
 Name:           ghc-rpm-macros
-Version:        0.99.2
+Version:        0.99.3
 Release:        1%{?dist}
 Summary:        RPM macros for building packages for GHC
 
@@ -87,6 +87,9 @@ EOF
 
 
 %changelog
+* Thu Jun  6 2013 Jens Petersen <petersen@redhat.com> - 0.99.3-1
+- configure builds with ghc -O2 (#880135)
+
 * Wed Jun  5 2013 Jens Petersen <petersen@redhat.com> - 0.99.2-1
 - drop -h option from extra macros and make -m work again