diff --git a/alioth/src/device/cmos_test.rs b/alioth/src/device/cmos_test.rs
index 91eea29c..54aa5926 100644
--- a/alioth/src/device/cmos_test.rs
+++ b/alioth/src/device/cmos_test.rs
@@ -55,7 +55,7 @@ fn test_cmos() {
         let value = cmos.read(0x1, 1).unwrap();
         assert_eq!(
             value as u32, expected,
-            "CMOS register {reg:#02x} should match getter",
+            "CMOS register {reg:#04x} should match getter",
         );
     }
 
diff --git a/alioth/src/pci/segment.rs b/alioth/src/pci/segment.rs
index a1d145d3..0309e13d 100644
--- a/alioth/src/pci/segment.rs
+++ b/alioth/src/pci/segment.rs
@@ -183,7 +183,7 @@ impl PciSegment {
 
     pub fn reset(&self) -> Result<()> {
         let devices = self.devices.read();
-        for (_, dev) in devices.iter() {
+        for dev in devices.values() {
             dev.reset()?;
             dev.config().reset()?;
         }