diff --git a/sys/netatm/atm_proto.c b/sys/netatm/atm_proto.c
index c2db1d182b0..96e3c2191be 100644
--- a/sys/netatm/atm_proto.c
+++ b/sys/netatm/atm_proto.c
@@ -51,6 +51,8 @@ __FBSDID("$FreeBSD$");
 #include <netatm/atm_pcb.h>
 #include <netatm/atm_var.h>
 
+NET_NEEDS_GIANT("netatm");
+
 struct protosw atmsw[] = {
 {	SOCK_DGRAM,				/* ioctl()-only */
 	&atmdomain,
diff --git a/sys/netnatm/natm_proto.c b/sys/netnatm/natm_proto.c
index ddfafcd9b6b..7e3ec3514ca 100644
--- a/sys/netnatm/natm_proto.c
+++ b/sys/netnatm/natm_proto.c
@@ -56,6 +56,8 @@ extern	struct domain natmdomain;
 
 static	void natm_init(void);
 
+NET_NEEDS_GIANT("netnatm");
+
 static struct protosw natmsw[] = {
 { SOCK_STREAM,	&natmdomain,	PROTO_NATMAAL5, PR_CONNREQUIRED,
   0,	0,	0,	0,