diff --git a/include/linux/net.h b/include/linux/net.h
index c136abc..dd79cdb 100644
--- a/include/linux/net.h
+++ b/include/linux/net.h
@@ -313,6 +313,10 @@
 #define MODULE_ALIAS_NET_PF_PROTO(pf, proto) \
 	MODULE_ALIAS("net-pf-" __stringify(pf) "-proto-" __stringify(proto))
 
+#define MODULE_ALIAS_NET_PF_PROTO_TYPE(pf, proto, type) \
+	MODULE_ALIAS("net-pf-" __stringify(pf) "-proto-" __stringify(proto) \
+		     "-type-" __stringify(type))
+
 #ifdef CONFIG_SYSCTL
 #include <linux/sysctl.h>
 extern ctl_table net_table[];
diff --git a/net/dccp/diag.c b/net/dccp/diag.c
index 0f37455..d8a3509 100644
--- a/net/dccp/diag.c
+++ b/net/dccp/diag.c
@@ -68,3 +68,4 @@
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Arnaldo Carvalho de Melo <acme@mandriva.com>");
 MODULE_DESCRIPTION("DCCP inet_diag handler");
+MODULE_ALIAS_NET_PF_PROTO_TYPE(PF_NETLINK, NETLINK_INET_DIAG, DCCPDIAG_GETSOCK);
diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
index 7eb83eb..dc429b6 100644
--- a/net/ipv4/inet_diag.c
+++ b/net/ipv4/inet_diag.c
@@ -815,6 +815,12 @@
 	    nlmsg_len(nlh) < hdrlen)
 		return -EINVAL;
 
+#ifdef CONFIG_KMOD
+	if (inet_diag_table[nlh->nlmsg_type] == NULL)
+		request_module("net-pf-%d-proto-%d-type-%d", PF_NETLINK,
+			       NETLINK_INET_DIAG, nlh->nlmsg_type);
+#endif
+
 	if (inet_diag_table[nlh->nlmsg_type] == NULL)
 		return -ENOENT;
 
@@ -914,3 +920,4 @@
 module_init(inet_diag_init);
 module_exit(inet_diag_exit);
 MODULE_LICENSE("GPL");
+MODULE_ALIAS_NET_PF_PROTO(PF_NETLINK, NETLINK_INET_DIAG);
diff --git a/net/ipv4/tcp_diag.c b/net/ipv4/tcp_diag.c
index 3904d21..2fbcc7d 100644
--- a/net/ipv4/tcp_diag.c
+++ b/net/ipv4/tcp_diag.c
@@ -56,3 +56,4 @@
 module_init(tcp_diag_init);
 module_exit(tcp_diag_exit);
 MODULE_LICENSE("GPL");
+MODULE_ALIAS_NET_PF_PROTO_TYPE(PF_NETLINK, NETLINK_INET_DIAG, TCPDIAG_GETSOCK);