diff --git a/modules/net-vpn-ha/README.md b/modules/net-vpn-ha/README.md
index d5fffa63..2357fb6b 100644
--- a/modules/net-vpn-ha/README.md
+++ b/modules/net-vpn-ha/README.md
@@ -13,6 +13,13 @@ module "vpn_ha-1" {
   name            = "net1-to-net-2"
   peer_gcp_gateway = module.vpn_ha-2.self_link
   router_asn = 64514
+  router_advertise_config = {
+    groups = ["ALL_SUBNETS"]
+    ip_ranges = {
+      "10.0.0.0/8" = "default"
+    }
+    mode = "CUSTOM"
+  }
   tunnels = {
     remote-0 = {
       bgp_peer = {
@@ -156,4 +163,4 @@ module "vpn_ha" {
 | tunnel_names | VPN tunnel names. |  |
 | tunnel_self_links | VPN tunnel self links. |  |
 | tunnels | VPN tunnel resources. |  |
-<!-- END TFDOC -->
\ No newline at end of file
+<!-- END TFDOC -->