diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index 0947105..ee90d74 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -2297,6 +2297,7 @@
 	.key_len = sizeof(u32), /* portid */
 	.max_size = 1048576,
 	.min_size = 256,
+	.automatic_shrinking = true,
 };
 
 int tipc_sk_rht_init(struct net *net)