diff --git a/arch_init.c b/arch_init.c
index 4486925..9a35411 100644
--- a/arch_init.c
+++ b/arch_init.c
@@ -295,7 +295,8 @@ int ram_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque)
 
     expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
 
-    return (stage == 2) && (expected_time <= migrate_max_downtime());
+    return (stage == 2) && migrate_max_downtime() &&
+        (expected_time <= migrate_max_downtime());
 }
 
 static inline void *host_from_stream_offset(QEMUFile *f,