diff --git a/cad/slffea/Makefile b/cad/slffea/Makefile
index 36dc4c5587ef..4831e4e52f0b 100644
--- a/cad/slffea/Makefile
+++ b/cad/slffea/Makefile
@@ -17,6 +17,8 @@ EXTRACT_SUFX=	.tgz
 MAINTAINER=	ports@FreeBSD.org
 COMMENT=	San Le's Free Finite Element Analysis
 
+BROKEN=		"Checksum mismatch"
+
 CONFLICTS=	ploticus-* swi-pl-* TenDRA-*
 USE_REINPLACE=	yes
 USE_MESA=	yes