diff --git a/math/rubygem-narray_miss/Makefile b/math/rubygem-narray_miss/Makefile
index 5a1a21658fab..52317196bf81 100644
--- a/math/rubygem-narray_miss/Makefile
+++ b/math/rubygem-narray_miss/Makefile
@@ -10,7 +10,9 @@ COMMENT=	Additional class with processing of missing value to NArray
 
 RUN_DEPENDS=	rubygem-narray>0:math/rubygem-narray
 
-USE_RUBY=	yes
 USES=		gem
+USE_RUBY=	yes
+
+NO_ARCH=	yes
 
 .include <bsd.port.mk>