diff --git a/ocaml-libvirt.spec b/ocaml-libvirt.spec
index f3ce108..5c14f30 100644
--- a/ocaml-libvirt.spec
+++ b/ocaml-libvirt.spec
@@ -14,6 +14,7 @@ License:        LGPLv2+
 URL:            http://libvirt.org/ocaml/
 Source0:        http://libvirt.org/sources/ocaml/%{name}-%{version}.tar.gz
 BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
+ExcludeArch:    sparc64 s390 s390x
 
 BuildRequires:  ocaml >= 3.10.0
 BuildRequires:  ocaml-ocamldoc
@@ -123,6 +124,10 @@ rm -rf $RPM_BUILD_ROOT
 
 
 %changelog
+* Thu Apr 16 2009 S390x secondary arch maintainer <fedora-s390x@lists.fedoraproject.org>
+- ExcludeArch sparc64, s390, s390x as we don't have OCaml on those archs
+  (added sparc64 per request from the sparc maintainer)
+
 * Tue Mar 10 2009 Richard W.M. Jones <rjones@redhat.com> - 0.6.1.0-1
 - New upstream release 0.6.1.0.