diff --git a/src/libgtpnl.map b/src/libgtpnl.map
index 6e69ef8..2368467 100644
--- a/src/libgtpnl.map
+++ b/src/libgtpnl.map
@@ -15,12 +15,14 @@
 
   gtp_tunnel_alloc;
   gtp_tunnel_free;
+  gtp_tunnel_set_ifns;
   gtp_tunnel_set_ifidx;
   gtp_tunnel_set_ms_ip4;
   gtp_tunnel_set_sgsn_ip4;
   gtp_tunnel_set_version;
   gtp_tunnel_set_tid;
   gtp_tunnel_set_flowid;
+  gtp_tunnel_get_ifns;
   gtp_tunnel_get_ifidx;
   gtp_tunnel_get_ms_ip4;
   gtp_tunnel_get_sgsn_ip4;