diff --git a/infra/version.map b/infra/version.map
index 4895dd0..28aaa35 100644
--- a/infra/version.map
+++ b/infra/version.map
@@ -66,6 +66,7 @@ global:
 	session_manager_on_thread_init;
 	session_manager_on_thread_exit;
 	session_manager_new_session_exdata_index;
+	session_manager_subscribe_free;
 	session_manager_subscribe_tcp;
 	session_manager_subscribe_udp;
 	session_manager_subscribe_control_packet;