diff --git a/monobristol.spec b/monobristol.spec
index 18aa403..91e891a 100644
--- a/monobristol.spec
+++ b/monobristol.spec
@@ -3,7 +3,7 @@
 
 Name:           monobristol
 Version:        0.60.3
-Release:        8%{?dist}
+Release:        9%{?dist}
 Summary:        GUI launcher for Bristol in Mono
 
 Group:          Applications/Multimedia
@@ -12,7 +12,7 @@ URL:            http://www.dacr.hu/monobristol/
 Source:         http://www.dacr.hu/monobristol/%{name}-%{version}.tar.gz
 # No upstrem bugtracker. Patch emailed upstream 20120626
 # The patch removes shebang from the top and removes .png extension from icon key
-patch1:         %{name}-0.60.3-desktop.patch
+Patch1:         %{name}-0.60.3-desktop.patch
 Requires:       bristol
 Requires:       mono-core 
 Requires:       hicolor-icon-theme
@@ -20,6 +20,8 @@ Requires:       hicolor-icon-theme
 BuildRequires:  gtk-sharp2-devel
 BuildRequires:  desktop-file-utils
 
+ExclusiveArch:  %{mono_arches}
+
 
 %description
 monoBristol is very simple Gui for Bristol Synthesiser.
@@ -69,6 +71,9 @@ fi
 %{_datadir}/icons/hicolor/48x48/apps/%{name}.png
 
 %changelog
+* Fri Jul 20 2012 Dan Horák <dan[at]danny.cz> 0.60.3-9
+- set ExclusiveArch
+
 * Fri Jul 20 2012 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 0.60.3-8
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_18_Mass_Rebuild