diff --git a/ocaml-lablgl.spec b/ocaml-lablgl.spec
index 82d27da..caea309 100644
--- a/ocaml-lablgl.spec
+++ b/ocaml-lablgl.spec
@@ -2,7 +2,7 @@
 
 Name:           ocaml-lablgl
 Version:        1.02
-Release:	11%{?dist}
+Release:	12%{?dist}
 
 Summary:        LablGL is an OpenGL interface for Objective Caml
 
@@ -28,6 +28,7 @@ BuildRequires:  mesa-libGL-devel
 BuildRequires:  mesa-libGLU-devel
 BuildRequires:	ocaml-labltk-devel
 BuildRequires:  ocaml-camlp4-devel
+ExcludeArch:    ppc64
 
 %define _use_internal_dependency_generator 0
 %define __find_requires /usr/lib/rpm/ocaml-find-requires.sh
@@ -146,6 +147,9 @@ rm -rf $RPM_BUILD_ROOT
 
 
 %changelog
+* Sat Jul  7 2007 Gerard Milmeister <gemi@bluewin.ch> - 1.02-12
+- exclude arch ppc64
+
 * Sat Jul  7 2007 Gerard Milmeister <gemi@bluewin.ch> - 1.02-11
 - added buildreq ocaml-camlp4-devel