diff --git a/science/mdynamix/Makefile b/science/mdynamix/Makefile
index aee6bb718628..70e120df0093 100644
--- a/science/mdynamix/Makefile
+++ b/science/mdynamix/Makefile
@@ -11,8 +11,6 @@ WWW=		http://www.fos.su.se/~sasha/mdynamix/
 
 LICENSE=	GPLv2+
 
-BROKEN_FreeBSD_12=	error: invalid value 'gnu++2b' in '-std=gnu++2b'
-
 LIB_DEPENDS=	libmpich.so:net/mpich
 
 USES=		fortran gmake