diff --git a/src/protocols/vnc/client.c b/src/protocols/vnc/client.c
index 10391dd3..f3840bb7 100644
--- a/src/protocols/vnc/client.c
+++ b/src/protocols/vnc/client.c
@@ -52,6 +52,7 @@ int guac_client_init(guac_client* client) {
 
     /* Set handlers */
     client->join_handler = guac_vnc_user_join_handler;
+    client->leave_handler = guac_vnc_user_leave_handler;
     client->free_handler = guac_vnc_client_free_handler;
 
     return 0;