diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c
index b1a4290..abe3801 100644
--- a/net/appletalk/ddp.c
+++ b/net/appletalk/ddp.c
@@ -1821,7 +1821,7 @@
 #endif
 
 
-static struct net_proto_family atalk_family_ops = {
+static const struct net_proto_family atalk_family_ops = {
 	.family		= PF_APPLETALK,
 	.create		= atalk_create,
 	.owner		= THIS_MODULE,