diff --git a/lang/yarv/Makefile b/lang/yarv/Makefile
index 406f6fc2ae8e..d60ef4f8395f 100644
--- a/lang/yarv/Makefile
+++ b/lang/yarv/Makefile
@@ -33,6 +33,10 @@ OPTIONS=	DEBUG "Enable debugging information" off \
 BROKEN=		does not build
 .endif
 
+.if ${OSVERSION} < 600000
+BROKEN=		Does not build on 5.x
+.endif
+
 .if ${OSVERSION} >= 400014
 CONFIGURE_ARGS+=--enable-ipv6
 .if ${OSVERSION} < 500000