diff --git a/kernel/task_cancel/src/lib.rs b/kernel/task_cancel/src/lib.rs
index 58a103544f..1b3b2faf56 100644
--- a/kernel/task_cancel/src/lib.rs
+++ b/kernel/task_cancel/src/lib.rs
@@ -4,8 +4,7 @@
 #![feature(abi_x86_interrupt, try_blocks)]
 #![no_std]
 
-use core::sync::atomic::Ordering;
-use task::{KillReason, TaskRef};
+use task::KillReason;
 use x86_64::structures::idt::InterruptStackFrame;
 
 pub fn set_trap_flag(stack_frame: &mut InterruptStackFrame) {