diff --git a/java_cup.spec b/java_cup.spec
index 89aa90d..4186b65 100644
--- a/java_cup.spec
+++ b/java_cup.spec
@@ -10,6 +10,7 @@ Summary:        LALR parser generator for Java
 License:        MIT
 URL:            http://www2.cs.tum.edu/projects/cup/
 BuildArch:      noarch
+ExclusiveArch:  %{java_arches} noarch
 
 # svn export -r 65 https://www2.in.tum.de/repos/cup/develop/ java_cup-0.11b
 # tar cjf java_cup-0.11b.tar.bz2 java_cup-0.11b/