diff --git a/games/acm/Makefile b/games/acm/Makefile
index 73b7df3f9d1a..cd349167ca4a 100644
--- a/games/acm/Makefile
+++ b/games/acm/Makefile
@@ -8,7 +8,7 @@ CATEGORIES=	games
 MASTER_SITES=	http://mirror.amdmi3.ru/distfiles/
 
 MAINTAINER=	ports@FreeBSD.org
-COMMENT=	Arial combat simulator for X11
+COMMENT=	Aerial combat simulator for X11
 
 LICENSE=	GPLv2
 LICENSE_FILE=	${WRKSRC}/COPYING
@@ -24,6 +24,8 @@ CONFIGURE_ENV=	ac_cv_lib_Xm_XmCreateBulletinBoard=no \
 USE_PERL5=	build
 MAKE_ARGS+=	prefix=${STAGEDIR}${PREFIX}/ OBVDIR=${STAGEDIR}${DATADIR}/
 
+BROKEN_aarch64=	Fails to compile: machine/limits.h not found
+
 OPTIONS_DEFINE=	SOUND
 
 SOUND_LIB_DEPENDS=	libaudio.so:audio/nas