diff --git a/vm-virtio/src/mem.rs b/vm-virtio/src/mem.rs
index cc5b5dfec..aaac0ef6e 100644
--- a/vm-virtio/src/mem.rs
+++ b/vm-virtio/src/mem.rs
@@ -738,6 +738,7 @@ impl MemEpollHandler {
 
 // Virtio device for exposing entropy to the guest OS through virtio.
 pub struct Mem {
+    id: String,
     resize: Resize,
     kill_evt: Option<EventFd>,
     pause_evt: Option<EventFd>,
@@ -754,7 +755,7 @@ pub struct Mem {
 
 impl Mem {
     // Create a new virtio-mem device.
-    pub fn new(region: &Arc<GuestRegionMmap>, resize: Resize) -> io::Result<Mem> {
+    pub fn new(id: String, region: &Arc<GuestRegionMmap>, resize: Resize) -> io::Result<Mem> {
         let region_len = region.len();
 
         if region_len != region_len / VIRTIO_MEM_DEFAULT_BLOCK_SIZE * VIRTIO_MEM_DEFAULT_BLOCK_SIZE
@@ -787,6 +788,7 @@ impl Mem {
         };
 
         Ok(Mem {
+            id,
             resize,
             kill_evt: None,
             pause_evt: None,
@@ -955,6 +957,10 @@ impl VirtioDevice for Mem {
 }
 
 virtio_pausable!(Mem);
-impl Snapshottable for Mem {}
+impl Snapshottable for Mem {
+    fn id(&self) -> String {
+        self.id.clone()
+    }
+}
 impl Transportable for Mem {}
 impl Migratable for Mem {}
diff --git a/vmm/src/device_manager.rs b/vmm/src/device_manager.rs
index 79ac772db..2ee2118be 100644
--- a/vmm/src/device_manager.rs
+++ b/vmm/src/device_manager.rs
@@ -1737,10 +1737,14 @@ impl DeviceManager {
     ) -> DeviceManagerResult<Vec<(VirtioDeviceArc, bool, Option<String>)>> {
         let mut devices = Vec::new();
 
-        let mm = &self.memory_manager.lock().unwrap();
+        let mm = self.memory_manager.clone();
+        let mm = mm.lock().unwrap();
         if let (Some(region), Some(resize)) = (&mm.virtiomem_region, &mm.virtiomem_resize) {
+            let id = String::from(MEM_DEVICE_NAME);
+
             let virtio_mem_device = Arc::new(Mutex::new(
                 vm_virtio::Mem::new(
+                    id.clone(),
                     &region,
                     resize
                         .try_clone()
@@ -1752,12 +1756,10 @@ impl DeviceManager {
             devices.push((
                 Arc::clone(&virtio_mem_device) as VirtioDeviceArc,
                 false,
-                Some(String::from(MEM_DEVICE_NAME)),
+                Some(id),
             ));
 
-            let migratable = Arc::clone(&virtio_mem_device) as Arc<Mutex<dyn Migratable>>;
-            let id = migratable.lock().unwrap().id();
-            self.migratable_devices.push((id, migratable));
+            self.add_migratable_device(Arc::clone(&virtio_mem_device) as Arc<Mutex<dyn Migratable>>);
         }
 
         Ok(devices)