diff --git a/src/lib.rs b/src/lib.rs
index 17cb0df..5ff3e97 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -43,7 +43,7 @@ cfg_if::cfg_if! {
     if #[cfg(any(chuni, chusanapp))] {
         type SliderCallbackFn = unsafe extern "C" fn(data: *const u8);
 
-        use std::{sync::atomic::AtomicBool, thread::{self, JoinHandle}};
+        use std::thread::{self, JoinHandle};
 
         use ::log::info;
         use once_cell::sync::OnceCell;