diff --git a/lang/erlang/Makefile b/lang/erlang/Makefile
index e99378f6b7a4..c697d19e334e 100644
--- a/lang/erlang/Makefile
+++ b/lang/erlang/Makefile
@@ -63,6 +63,7 @@ USE_RC_SUBR=	epmd.sh
 GNU_CONFIGURE=	yes
 ONLY_FOR_ARCHS=	i386 amd64 sparc64
 REINPLACE_ARGS=	-i
+MAKE_JOBS_UNSAFE=	yes
 
 .include <bsd.port.pre.mk>
 
diff --git a/lang/erlang14/Makefile b/lang/erlang14/Makefile
index e99378f6b7a4..c697d19e334e 100644
--- a/lang/erlang14/Makefile
+++ b/lang/erlang14/Makefile
@@ -63,6 +63,7 @@ USE_RC_SUBR=	epmd.sh
 GNU_CONFIGURE=	yes
 ONLY_FOR_ARCHS=	i386 amd64 sparc64
 REINPLACE_ARGS=	-i
+MAKE_JOBS_UNSAFE=	yes
 
 .include <bsd.port.pre.mk>