diff --git a/biology/migrate/Makefile b/biology/migrate/Makefile
index 29586ced9d16..b94c7ef8a18a 100644
--- a/biology/migrate/Makefile
+++ b/biology/migrate/Makefile
@@ -13,6 +13,7 @@ COMMENT=	Program to estimate population sizes and migration rates
 BROKEN_armv6=		fails to build: make[2]: cannot open makefile
 BROKEN_armv7=		fails to build: make[2]: cannot open makefile
 BROKEN_mips=		fails to build: make[2]: cannot open makefile
+BROKEN_riscv64=		fails to build: make[2]: cannot open makefile
 
 WRKSRC=		${WRKDIR}/${PORTNAME}-${PORTVERSION}/src
 EXTRACT_AFTER_ARGS=--exclude zlib