diff --git a/plexus-cipher.spec b/plexus-cipher.spec
index fa6ebb7..8cfa115 100644
--- a/plexus-cipher.spec
+++ b/plexus-cipher.spec
@@ -8,6 +8,7 @@ License:        ASL 2.0
 # project moved to GitHub and it looks like there is no official website anymore
 URL:            https://github.com/codehaus-plexus/plexus-cipher
 BuildArch:      noarch
+ExclusiveArch:  %{java_arches} noarch
 
 Source0:        %{url}/archive/%{name}-%{version}/%{name}-%{version}.tar.gz