diff --git a/qemu-nbd.c b/qemu-nbd.c
index 651f85e..9464a04 100644
--- a/qemu-nbd.c
+++ b/qemu-nbd.c
@@ -336,10 +336,10 @@
 
 static void nbd_update_server_watch(void);
 
-static void nbd_client_closed(NBDClient *client)
+static void nbd_client_closed(NBDClient *client, bool negotiated)
 {
     nb_fds--;
-    if (nb_fds == 0 && !persistent && state == RUNNING) {
+    if (negotiated && nb_fds == 0 && !persistent && state == RUNNING) {
         state = TERMINATE;
     }
     nbd_update_server_watch();