diff --git a/editors/tamago/Makefile b/editors/tamago/Makefile
index 2076441e93f7..541de024937c 100644
--- a/editors/tamago/Makefile
+++ b/editors/tamago/Makefile
@@ -1,28 +1,33 @@
 PORTNAME=	tamago
 PORTVERSION=	4.0.6.0.20041122.19.15
 PORTREVISION=	6
 DISTVERSIONPREFIX=	v
 CATEGORIES=	editors elisp
 PKGNAMESUFFIX=	${EMACS_PKGNAMESUFFIX}
 
 MAINTAINER=	hrs@FreeBSD.org
 COMMENT=	Egg V4, Multilingual Input Method for Emacsen
 WWW=		https://github.com/hrs-allbsd/tamago
 
 LICENSE=	GPLv2
 
 USES=		emacs
 USE_GITHUB=	yes
 GH_ACCOUNT=	hrs-allbsd
 
 GNU_CONFIGURE=	yes
 CONFIGURE_ARGS=	--with-lispdir="${LOCALBASE}/${EMACS_VERSION_SITE_LISPDIR}"
 CONFIGURE_ENV=	EMACS="${EMACS_CMD}"
+
+# Sometimes parallel build fails with such error as following:
+# egg-com.el:35:11: Error: Loading file /wrkdirs/usr/ports/editors/tamago/work-devel_nox/tamago-4.0.6.0.20041122.19.15/egg-edep.elc failed to provide feature `egg-edep'
+MAKE_JOBS_UNSAFE=	yes
+
 PLIST_SUB=	ELISPDIR="${EMACS_VERSION_SITE_LISPDIR}"
 PORTDOCS=	AUTHORS ChangeLog ChangeLog.1997-1998 \
 		ChangeLog.2000-2001 ChangeLog.2002-2004 \
 		PROBLEMS README README.ja.txt TODO egg-anthy.readme
 OPTIONS_DEFINE=	DOCS
 DOCS_CONFIGURE_ENABLE=	doc
 
 .include <bsd.port.mk>