diff --git a/science/vis5d+/Makefile b/science/vis5d+/Makefile
index bee6497257f6..b878ae141838 100644
--- a/science/vis5d+/Makefile
+++ b/science/vis5d+/Makefile
@@ -39,4 +39,10 @@ LDFLAGS=	-L${LOCALBASE}/lib ${PTHREAD_LIBS}
 
 CFLAGS+=	-DMIX_ANSI_IOSTREAMS -fPIC -fpermissive
 
-.include <bsd.port.mk>
+.include <bsd.port.pre.mk>
+
+.if ${ARCH} == "sparc64"
+BROKEN=		Does not compile on sparc64
+.endif
+
+.include <bsd.port.post.mk>