diff --git a/virtio-devices/src/vsock/unix/mod.rs b/virtio-devices/src/vsock/unix/mod.rs
index b83d96c15..4f7bf2175 100644
--- a/virtio-devices/src/vsock/unix/mod.rs
+++ b/virtio-devices/src/vsock/unix/mod.rs
@@ -13,6 +13,7 @@ mod muxer;
 mod muxer_killq;
 mod muxer_rxq;
 
+use thiserror::Error;
 pub use muxer::VsockMuxer as VsockUnixBackend;
 pub use Error as VsockUnixError;
 
@@ -27,29 +28,40 @@ mod defs {
     pub const MUXER_KILLQ_SIZE: usize = 128;
 }
 
-#[derive(Debug)]
+#[derive(Error, Debug)]
 pub enum Error {
     /// Error converting from UTF-8
-    ConvertFromUtf8(std::str::Utf8Error),
+    #[error("Error converting from UTF-8: {0}")]
+    ConvertFromUtf8(#[source] std::str::Utf8Error),
     /// Error registering a new epoll-listening FD.
-    EpollAdd(std::io::Error),
+    #[error("Error registering a new epoll-listening FD: {0}")]
+    EpollAdd(#[source] std::io::Error),
     /// Error creating an epoll FD.
-    EpollFdCreate(std::io::Error),
+    #[error("Error creating an epoll FD: {0}")]
+    EpollFdCreate(#[source] std::io::Error),
     /// The host made an invalid vsock port connection request.
+    #[error("The host made an invalid vsock port connection request")]
     InvalidPortRequest,
     /// Error parsing integer.
-    ParseInteger(std::num::ParseIntError),
+    #[error("Error parsing integer: {0}")]
+    ParseInteger(#[source] std::num::ParseIntError),
     /// Error reading stream port.
-    ReadStreamPort(Box<Error>),
+    #[error("Error reading stream port: {0}")]
+    ReadStreamPort(#[source] Box<Error>),
     /// Error accepting a new connection from the host-side Unix socket.
-    UnixAccept(std::io::Error),
+    #[error("Error accepting a new connection from the host-side Unix socket: {0}")]
+    UnixAccept(#[source] std::io::Error),
     /// Error binding to the host-side Unix socket.
-    UnixBind(std::io::Error),
+    #[error("Error binding to the host-side Unix socket: {0}")]
+    UnixBind(#[source] std::io::Error),
     /// Error connecting to a host-side Unix socket.
-    UnixConnect(std::io::Error),
+    #[error("Error connecting to a host-side Unix socket: {0}")]
+    UnixConnect(#[source] std::io::Error),
     /// Error reading from host-side Unix socket.
-    UnixRead(std::io::Error),
+    #[error("Error reading from host-side Unix socket: {0}")]
+    UnixRead(#[source] std::io::Error),
     /// Muxer connection limit reached.
+    #[error("Muxer connection limit reached")]
     TooManyConnections,
 }
 
diff --git a/vmm/src/device_manager.rs b/vmm/src/device_manager.rs
index cde0a004c..c60f2b33c 100644
--- a/vmm/src/device_manager.rs
+++ b/vmm/src/device_manager.rs
@@ -216,7 +216,7 @@ pub enum DeviceManagerError {
 
     /// Cannot create virtio-vsock backend
     #[error("Cannot create virtio-vsock backend")]
-    CreateVsockBackend(virtio_devices::vsock::VsockUnixError),
+    CreateVsockBackend(#[source] virtio_devices::vsock::VsockUnixError),
 
     /// Cannot create virtio-iommu device
     #[error("Cannot create virtio-iommu device: {0}")]