diff --git a/share/mk/src.opts.mk b/share/mk/src.opts.mk
index d3f7e33f276..6cfab4b5061 100644
--- a/share/mk/src.opts.mk
+++ b/share/mk/src.opts.mk
@@ -438,6 +438,7 @@ MK_LDNS:=	no
 MK_PKGBOOTSTRAP:=	no
 MK_SVN:=		no
 MK_SVNLITE:=		no
+MK_ZFS:=	no
 .endif
 
 .if ${MK_LDNS} == "no"