diff --git a/doc/examples/osmo-hnbgw/osmo-hnbgw.cfg b/doc/examples/osmo-hnbgw/osmo-hnbgw.cfg
index 53b5508..a39ea7b 100644
--- a/doc/examples/osmo-hnbgw/osmo-hnbgw.cfg
+++ b/doc/examples/osmo-hnbgw/osmo-hnbgw.cfg
@@ -28,4 +28,6 @@ hnbgw
   mgw local-port 2729
   mgw remote-port 2427
   mgw reset-endpoint rtpbridge/*
-
+ pfcp
+  # Remove the line below to disable GTP relay via UPF
+  remote-addr 127.0.0.1