diff --git a/ocaml-camomile.spec b/ocaml-camomile.spec
index 42a0085..1f36966 100644
--- a/ocaml-camomile.spec
+++ b/ocaml-camomile.spec
@@ -3,7 +3,7 @@
 
 Name:           ocaml-camomile
 Version:        0.7.1
-Release:        5%{?dist}
+Release:        6%{?dist}
 Summary:        Unicode library for OCaml
 
 Group:          Development/Libraries
@@ -14,6 +14,7 @@ License:        LGPLv2+
 URL:            http://sourceforge.net/projects/camomile/
 Source0:        http://downloads.sourceforge.net/camomile/camomile-0.7.1.tar.bz2
 BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
+ExcludeArch:    ppc64
 
 BuildRequires:  ocaml, ocaml-findlib-devel, ocaml-ocamldoc, ocaml-camlp4-devel
 
@@ -113,6 +114,9 @@ rm -rf $RPM_BUILD_ROOT
 
 
 %changelog
+* Fri Mar 21 2008 Richard W.M. Jones <rjones@redhat.com> - 0.7.1-6
+- ExcludeArch ppc64 (#438486).
+
 * Mon Mar 17 2008 Richard W.M. Jones <rjones@redhat.com> - 0.7.1-5
 - Definitive license.
 - Move ./configure into the build section.