diff --git a/src/mailbox.rs b/src/mailbox.rs
index 2317d2e..3f94599 100644
--- a/src/mailbox.rs
+++ b/src/mailbox.rs
@@ -1,5 +1,3 @@
-use core::ptr::read_volatile;
-
 use crate::{mmio_read, mmio_write, peripherals::uart::print};
 
 const MBOX_BASE: u32 = 0x3F00_0000 + 0xB880;