diff --git a/arch/src/aarch64/fdt.rs b/arch/src/aarch64/fdt.rs
index 95831ae67..30c754d6f 100644
--- a/arch/src/aarch64/fdt.rs
+++ b/arch/src/aarch64/fdt.rs
@@ -82,7 +82,7 @@ pub trait DeviceInfoForFdt {
 pub enum Error {
     /// Failure in writing FDT in memory.
     #[error("Failure in writing FDT in memory: {0}")]
-    WriteFdtToMemory(GuestMemoryError),
+    WriteFdtToMemory(#[source] GuestMemoryError),
 }
 type Result<T> = result::Result<T, Error>;
 
diff --git a/arch/src/aarch64/mod.rs b/arch/src/aarch64/mod.rs
index 78f44e89d..d0a6eb002 100644
--- a/arch/src/aarch64/mod.rs
+++ b/arch/src/aarch64/mod.rs
@@ -33,7 +33,7 @@ pub enum Error {
 
     /// Failed to write FDT to memory.
     #[error("Failed to write FDT to memory: {0}")]
-    WriteFdtToMemory(fdt::Error),
+    WriteFdtToMemory(#[source] fdt::Error),
 
     /// Failed to create a GIC.
     #[error("Failed to create a GIC")]
@@ -45,11 +45,11 @@ pub enum Error {
 
     /// Error configuring the general purpose registers
     #[error("Error configuring the general purpose registers: {0}")]
-    RegsConfiguration(hypervisor::HypervisorCpuError),
+    RegsConfiguration(#[source] hypervisor::HypervisorCpuError),
 
     /// Error configuring the MPIDR register
     #[error("Error configuring the MPIDR register: {0}")]
-    VcpuRegMpidr(hypervisor::HypervisorCpuError),
+    VcpuRegMpidr(#[source] hypervisor::HypervisorCpuError),
 
     /// Error initializing PMU for vcpu
     #[error("Error initializing PMU for vcpu")]