diff --git a/plexus-classworlds.spec b/plexus-classworlds.spec
index 973566a..67e4bc9 100644
--- a/plexus-classworlds.spec
+++ b/plexus-classworlds.spec
@@ -7,6 +7,7 @@ Summary:        Plexus Classworlds Classloader Framework
 License:        ASL 2.0 and Plexus
 URL:            https://github.com/codehaus-plexus/plexus-classworlds
 BuildArch:      noarch
+ExclusiveArch:  %{java_arches} noarch
 
 Source0:        https://github.com/codehaus-plexus/%{name}/archive/%{name}-%{version}.tar.gz