diff --git a/vm-device/src/lib.rs b/vm-device/src/lib.rs
index bd5b01e57..991131785 100644
--- a/vm-device/src/lib.rs
+++ b/vm-device/src/lib.rs
@@ -49,7 +49,7 @@ pub trait Snapshotable {}
 /// All migratable components are paused before being snapshotted, and then
 /// eventually resumed. Thus any Migratable component must be both Pausable
 /// and Snapshotable.
-pub trait Migratable: Pausable + Snapshotable {}
+pub trait Migratable: Send + Pausable + Snapshotable {}
 
 fn get_region_host_address_range(
     region: &GuestRegionMmap,
diff --git a/vmm/src/device_manager.rs b/vmm/src/device_manager.rs
index 03f81b746..79bef4076 100644
--- a/vmm/src/device_manager.rs
+++ b/vmm/src/device_manager.rs
@@ -22,7 +22,7 @@ use acpi_tables::{aml, aml::Aml};
 #[cfg(feature = "acpi")]
 use arch::layout;
 use arch::layout::{APIC_START, IOAPIC_SIZE, IOAPIC_START};
-use devices::{ioapic, HotPlugNotificationFlags};
+use devices::{ioapic, BusDevice, HotPlugNotificationFlags};
 use kvm_ioctls::*;
 use libc::O_TMPFILE;
 use libc::TIOCGWINSZ;
@@ -1841,6 +1841,8 @@ impl Pausable for DeviceManager {
 impl Snapshotable for DeviceManager {}
 impl Migratable for DeviceManager {}
 
+impl BusDevice for DeviceManager {}
+
 impl Drop for DeviceManager {
     fn drop(&mut self) {
         for (device, _) in self.virtio_devices.drain(..) {