diff --git a/src/lib.rs b/src/lib.rs
index 6545c3d..f6f5b69 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -127,6 +127,7 @@ pub mod irq {
 
 /// Physical Address
 #[derive(Debug, Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
+#[allow(dead_code)]
 pub struct PhysAddr {
     addr: u32,
 }