diff --git a/virtio-devices/src/balloon.rs b/virtio-devices/src/balloon.rs
index 924475f0e..070158cfd 100644
--- a/virtio-devices/src/balloon.rs
+++ b/virtio-devices/src/balloon.rs
@@ -65,27 +65,27 @@ const VIRTIO_BALLOON_F_REPORTING: u64 = 5;
 #[derive(Error, Debug)]
 pub enum Error {
     #[error("Guest gave us bad memory addresses.: {0}")]
-    GuestMemory(GuestMemoryError),
+    GuestMemory(#[source] GuestMemoryError),
     #[error("Guest gave us a write only descriptor that protocol says to read from")]
     UnexpectedWriteOnlyDescriptor,
     #[error("Guest sent us invalid request")]
     InvalidRequest,
     #[error("Fallocate fail.: {0}")]
-    FallocateFail(std::io::Error),
+    FallocateFail(#[source] std::io::Error),
     #[error("Madvise fail.: {0}")]
-    MadviseFail(std::io::Error),
+    MadviseFail(#[source] std::io::Error),
     #[error("Failed to EventFd write.: {0}")]
-    EventFdWriteFail(std::io::Error),
+    EventFdWriteFail(#[source] std::io::Error),
     #[error("Invalid queue index: {0}")]
     InvalidQueueIndex(usize),
     #[error("Fail tp signal: {0}")]
-    FailedSignal(io::Error),
+    FailedSignal(#[source] io::Error),
     #[error("Descriptor chain is too short")]
     DescriptorChainTooShort,
     #[error("Failed adding used index: {0}")]
-    QueueAddUsed(virtio_queue::Error),
+    QueueAddUsed(#[source] virtio_queue::Error),
     #[error("Failed creating an iterator over the queue: {0}")]
-    QueueIterator(virtio_queue::Error),
+    QueueIterator(#[source] virtio_queue::Error),
 }
 
 // Got from include/uapi/linux/virtio_balloon.h
diff --git a/virtio-devices/src/console.rs b/virtio-devices/src/console.rs
index 64dbca21f..da96a336d 100644
--- a/virtio-devices/src/console.rs
+++ b/virtio-devices/src/console.rs
@@ -52,15 +52,15 @@ enum Error {
     #[error("Descriptor chain too short")]
     DescriptorChainTooShort,
     #[error("Failed to read from guest memory: {0}")]
-    GuestMemoryRead(vm_memory::guest_memory::Error),
+    GuestMemoryRead(#[source] vm_memory::guest_memory::Error),
     #[error("Failed to write to guest memory: {0}")]
-    GuestMemoryWrite(vm_memory::guest_memory::Error),
+    GuestMemoryWrite(#[source] vm_memory::guest_memory::Error),
     #[error("Failed to write_all output: {0}")]
-    OutputWriteAll(io::Error),
+    OutputWriteAll(#[source] io::Error),
     #[error("Failed to flush output: {0}")]
-    OutputFlush(io::Error),
+    OutputFlush(#[source] io::Error),
     #[error("Failed to add used index: {0}")]
-    QueueAddUsed(virtio_queue::Error),
+    QueueAddUsed(#[source] virtio_queue::Error),
 }
 
 #[derive(Copy, Clone, Debug, Serialize, Deserialize)]
diff --git a/virtio-devices/src/epoll_helper.rs b/virtio-devices/src/epoll_helper.rs
index 3f78768f7..8ef080e64 100644
--- a/virtio-devices/src/epoll_helper.rs
+++ b/virtio-devices/src/epoll_helper.rs
@@ -25,19 +25,19 @@ pub struct EpollHelper {
 #[derive(Error, Debug)]
 pub enum EpollHelperError {
     #[error("Failed to create Fd: {0}")]
-    CreateFd(std::io::Error),
+    CreateFd(#[source] std::io::Error),
     #[error("Failed to epoll_ctl: {0}")]
-    Ctl(std::io::Error),
+    Ctl(#[source] std::io::Error),
     #[error("IO error: {0}")]
-    IoError(std::io::Error),
+    IoError(#[source] std::io::Error),
     #[error("Failed to epoll_wait: {0}")]
-    Wait(std::io::Error),
+    Wait(#[source] std::io::Error),
     #[error("Failed to get virtio-queue index: {0}")]
-    QueueRingIndex(virtio_queue::Error),
+    QueueRingIndex(#[source] virtio_queue::Error),
     #[error("Failed to handle virtio device events: {0}")]
-    HandleEvent(anyhow::Error),
+    HandleEvent(#[source] anyhow::Error),
     #[error("Failed to handle timeout: {0}")]
-    HandleTimeout(anyhow::Error),
+    HandleTimeout(#[source] anyhow::Error),
 }
 
 pub const EPOLL_HELPER_EVENT_PAUSE: u16 = 0;
diff --git a/virtio-devices/src/pmem.rs b/virtio-devices/src/pmem.rs
index d46cdd6f2..7df772955 100644
--- a/virtio-devices/src/pmem.rs
+++ b/virtio-devices/src/pmem.rs
@@ -76,7 +76,7 @@ unsafe impl ByteValued for VirtioPmemResp {}
 #[derive(Error, Debug)]
 enum Error {
     #[error("Bad guest memory addresses: {0}")]
-    GuestMemory(GuestMemoryError),
+    GuestMemory(#[source] GuestMemoryError),
     #[error("Unexpected write-only descriptor")]
     UnexpectedWriteOnlyDescriptor,
     #[error("Unexpected read-only descriptor")]
@@ -88,7 +88,7 @@ enum Error {
     #[error("Invalid request")]
     InvalidRequest,
     #[error("Failed adding used index: {0}")]
-    QueueAddUsed(virtio_queue::Error),
+    QueueAddUsed(#[source] virtio_queue::Error),
 }
 
 #[derive(Debug, PartialEq, Eq)]
diff --git a/virtio-devices/src/rng.rs b/virtio-devices/src/rng.rs
index 918285ac7..f89e18068 100644
--- a/virtio-devices/src/rng.rs
+++ b/virtio-devices/src/rng.rs
@@ -42,9 +42,9 @@ enum Error {
     #[error("Invalid descriptor")]
     InvalidDescriptor,
     #[error("Failed to write to guest memory: {0}")]
-    GuestMemoryWrite(vm_memory::guest_memory::Error),
+    GuestMemoryWrite(#[source] vm_memory::guest_memory::Error),
     #[error("Failed adding used index: {0}")]
-    QueueAddUsed(virtio_queue::Error),
+    QueueAddUsed(#[source] virtio_queue::Error),
 }
 
 struct RngEpollHandler {