diff --git a/archivers/par/Makefile b/archivers/par/Makefile
index d6afe5ebdd27..b621d7b694cb 100644
--- a/archivers/par/Makefile
+++ b/archivers/par/Makefile
@@ -23,6 +23,8 @@ PORTDOCS=	ChangeLog README
 
 OPTIONS_DEFINE=	DOCS
 
+MAKE_JOBS_UNSAFE=	yes
+
 post-patch:
 	@${REINPLACE_CMD} -e 's,-Wall.*-pipe,${CFLAGS}, ; \
 		s,"Linux,"${OPSYS},' ${WRKSRC}/${MAKEFILE}