diff --git a/sys/conf/kern.post.mk b/sys/conf/kern.post.mk
index 63aeab164f7e..65d162b81a48 100644
--- a/sys/conf/kern.post.mk
+++ b/sys/conf/kern.post.mk
@@ -200,7 +200,8 @@ SRCS=	assym.s vnode_if.h ${BEFORE_DEPEND} ${CFILES} \
 	${SYSTEM_CFILES} ${GEN_CFILES} ${SFILES} \
 	${MFILES:T:S/.m$/.h/}
 DEPENDFILES=	.depend
-.if ${MK_FAST_DEPEND} == "yes" && ${.MAKE.MODE:Unormal:Mmeta*} == ""
+.if ${MK_FAST_DEPEND} == "yes" && \
+    (${.MAKE.MODE:Unormal:Mmeta} == "" || ${.MAKE.MODE:Unormal:Mnofilemon} != "")
 DEPENDFILES+=	.depend.*
 DEPEND_CFLAGS+=	-MD -MP -MF.depend.${.TARGET}
 DEPEND_CFLAGS+=	-MT${.TARGET}