diff --git a/src/libgtpnl.map b/src/libgtpnl.map
index 804f8b3..1237e69 100644
--- a/src/libgtpnl.map
+++ b/src/libgtpnl.map
@@ -38,3 +38,8 @@
 
 local: *;
 };
+
+LIBGTPNL_1.1 {
+  gtp_tunnel_set_ms_ip6;
+  gtp_tunnel_set_sgsn_ip6;
+} LIBGTPNL_1.0;