diff --git a/memory.c b/memory.c
index d90853855b..d05a80aba5 100644
--- a/memory.c
+++ b/memory.c
@@ -1891,7 +1891,7 @@ void memory_region_notify_one(IOMMUNotifier *notifier,
      * Skip the notification if the notification does not overlap
      * with registered range.
      */
-    if (notifier->start > entry->iova + entry->addr_mask + 1 ||
+    if (notifier->start > entry->iova + entry->addr_mask ||
         notifier->end < entry->iova) {
         return;
     }