diff --git a/src/bus/mod.rs b/src/bus/mod.rs
index cfe39ba..8ab64ab 100644
--- a/src/bus/mod.rs
+++ b/src/bus/mod.rs
@@ -22,7 +22,7 @@ pub use address::{MmioAddress, MmioAddressOffset, PioAddress, PioAddressOffset};
 pub use range::{BusRange, MmioRange, PioRange};
 
 /// Errors encountered during bus operations.
-#[derive(Debug, PartialEq)]
+#[derive(Debug, Eq, PartialEq)]
 pub enum Error {
     /// No device is associated with the specified address or range.
     DeviceNotFound,
diff --git a/src/resources.rs b/src/resources.rs
index 8a74ea8..1a79d7b 100644
--- a/src/resources.rs
+++ b/src/resources.rs
@@ -107,8 +107,8 @@ impl ResourceConstraint {
     }
 }
 
-/// Type of Message Singaled Interrupt
-#[derive(Copy, Clone, PartialEq)]
+/// Type of Message Signaled Interrupt
+#[derive(Clone, Copy, Eq, PartialEq)]
 pub enum MsiIrqType {
     /// PCI MSI IRQ numbers.
     PciMsi,