diff --git a/vhost-user-backend/src/handler.rs b/vhost-user-backend/src/handler.rs
index 6da0c1c..27e8e9a 100644
--- a/vhost-user-backend/src/handler.rs
+++ b/vhost-user-backend/src/handler.rs
@@ -30,10 +30,7 @@ use vhost::vhost_user::{
 use virtio_bindings::bindings::virtio_ring::VIRTIO_RING_F_EVENT_IDX;
 use virtio_queue::{Error as VirtQueError, QueueT};
 use vm_memory::mmap::NewBitmap;
-use vm_memory::{
-    GuestAddress, GuestAddressSpace, GuestMemory, GuestMemoryMmap, GuestMemoryRegion,
-    GuestRegionMmap,
-};
+use vm_memory::{GuestAddress, GuestAddressSpace, GuestMemory, GuestMemoryMmap, GuestRegionMmap};
 use vmm_sys_util::epoll::EventSet;
 
 use super::backend::VhostUserBackend;
@@ -788,7 +785,7 @@ where
         }
 
         for (region, bitmap) in bitmaps {
-            region.bitmap().replace(bitmap);
+            (*region).bitmap().replace(bitmap);
         }
 
         Ok(())