diff --git a/migration.c b/migration.c
index 7551953b5a5472eba1335c6cfd6ecd27c13e8f83..5b28e42f58efef41b523bd80da4e2f9524323961 100644
--- a/migration.c
+++ b/migration.c
@@ -132,7 +132,8 @@ uint64_t migrate_max_downtime(void)
     return max_downtime;
 }
 
-void do_migrate_set_downtime(Monitor *mon, const QDict *qdict)
+void do_migrate_set_downtime(Monitor *mon, const QDict *qdict,
+                             QObject **ret_data)
 {
     double d;
 
diff --git a/migration.h b/migration.h
index 3ac208bf5eb0d4de966118b33bbe6804b04805fd..65572c147ca5edbb9a47a1e89160b14b69cd1602 100644
--- a/migration.h
+++ b/migration.h
@@ -60,7 +60,8 @@ void do_migrate_set_speed(Monitor *mon, const QDict *qdict, QObject **ret_data);
 
 uint64_t migrate_max_downtime(void);
 
-void do_migrate_set_downtime(Monitor *mon, const QDict *qdict);
+void do_migrate_set_downtime(Monitor *mon, const QDict *qdict,
+                             QObject **ret_data);
 
 void do_info_migrate_print(Monitor *mon, const QObject *data);
 
diff --git a/qemu-monitor.hx b/qemu-monitor.hx
index 2bf89c72587cbe86b05e9fc7a925e28c719fe0d9..e5bff8e9f15e7d93347e8b5ad46a3f13c70ba6f4 100644
--- a/qemu-monitor.hx
+++ b/qemu-monitor.hx
@@ -778,7 +778,8 @@ ETEXI
         .args_type  = "value:T",
         .params     = "value",
         .help       = "set maximum tolerated downtime (in seconds) for migrations",
-        .mhandler.cmd = do_migrate_set_downtime,
+        .user_print = monitor_user_noop,
+        .mhandler.cmd_new = do_migrate_set_downtime,
     },
 
 STEXI