diff --git a/editors/tamago/Makefile b/editors/tamago/Makefile
index 2076441e93f7..541de024937c 100644
--- a/editors/tamago/Makefile
+++ b/editors/tamago/Makefile
@@ -18,6 +18,11 @@ 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 \