diff --git a/sysutils/cpuid2cpuflags/Makefile b/sysutils/cpuid2cpuflags/Makefile
index 99ebd3823ae0..e1435f173306 100644
--- a/sysutils/cpuid2cpuflags/Makefile
+++ b/sysutils/cpuid2cpuflags/Makefile
@@ -13,6 +13,7 @@ LICENSE=	BSD2CLAUSE
 
 BROKEN_powerpc64=	fails to build: error "Platform not supported (only Linux supported at the moment)"
 BROKEN_powerpc64le=	fails to build: error "Platform not supported (only Linux supported at the moment)"
+BROKEN_riscv64=		fails to build: src/platforms.h:15:4: error: "Unsupported platform, please report"
 
 USES=		autoreconf
 USE_GITHUB=	yes