diff --git a/release/picobsd/build/Makefile.conf b/release/picobsd/build/Makefile.conf
index 34160ba1b66b..29908c53fc5c 100644
--- a/release/picobsd/build/Makefile.conf
+++ b/release/picobsd/build/Makefile.conf
@@ -12,8 +12,8 @@ KERNFILE=$(COMPILE)/kernel
 all: $(KERNFILE)
 
 $(KERNFILE): PICOBSD
-	cat PICOBSD | grep -v "MFS_ROOT" > ${CONF}/${CONFFILE}
-	echo "options	MFS_ROOT" >> ${CONF}/${CONFFILE}
+	cat PICOBSD | grep -v "MD_ROOT" > ${CONF}/${CONFFILE}
+	echo "options	MD_ROOT" >> ${CONF}/${CONFFILE}
 	(cd ${CONF}; \
 	config ${CONFFILE}; \
 	cd ${COMPILE}; \