diff --git a/devices/src/lib.rs b/devices/src/lib.rs
index b106d86fd..c6e86da99 100644
--- a/devices/src/lib.rs
+++ b/devices/src/lib.rs
@@ -67,6 +67,6 @@ pub enum Error {
     IoError(io::Error),
 }
 
-pub trait Interrupt: Send {
+pub trait Interrupt: Send + Sync {
     fn deliver(&self) -> result::Result<(), std::io::Error>;
 }