diff --git a/sys/conf/kern.pre.mk b/sys/conf/kern.pre.mk
index d23d531ced64..e68eb7968218 100644
--- a/sys/conf/kern.pre.mk
+++ b/sys/conf/kern.pre.mk
@@ -216,6 +216,7 @@ MKMODULESENV+=	MAKEOBJDIRPREFIX=${.OBJDIR}/modules KMODDIR=${KODIR}
 MKMODULESENV+=	MACHINE_CPUARCH=${MACHINE_CPUARCH}
 MKMODULESENV+=	MACHINE=${MACHINE} MACHINE_ARCH=${MACHINE_ARCH}
 MKMODULESENV+=	MODULES_EXTRA="${MODULES_EXTRA}" WITHOUT_MODULES="${WITHOUT_MODULES}"
+MKMODULESENV+=	ARCH_FLAGS="${ARCH_FLAGS}"
 .if (${KERN_IDENT} == LINT)
 MKMODULESENV+=	ALL_MODULES=LINT
 .endif
diff --git a/sys/conf/kmod.mk b/sys/conf/kmod.mk
index da65f7117927..e2e63032ef19 100644
--- a/sys/conf/kmod.mk
+++ b/sys/conf/kmod.mk
@@ -366,7 +366,7 @@ ${_src}:
 .endif
 
 # Respect configuration-specific C flags.
-CFLAGS+=	${CONF_CFLAGS}
+CFLAGS+=	${ARCH_FLAGS} ${CONF_CFLAGS}
 
 .if !empty(SRCS:Mvnode_if.c)
 CLEANFILES+=	vnode_if.c