diff --git a/src/keyboard.rs b/src/keyboard.rs
index b82290605..40de9b5df 100644
--- a/src/keyboard.rs
+++ b/src/keyboard.rs
@@ -10,7 +10,9 @@ use crate::ui::CUR_SESSION;
 #[cfg(not(any(target_os = "android", target_os = "ios")))]
 use hbb_common::log;
 use hbb_common::message_proto::*;
-use rdev::{Event, EventType, Key, KeyCode};
+#[cfg(any(target_os = "windows", target_os = "macos"))]
+use rdev::KeyCode;
+use rdev::{Event, EventType, Key};
 #[cfg(any(target_os = "windows", target_os = "macos"))]
 use std::sync::atomic::{AtomicBool, Ordering};
 use std::{
@@ -892,15 +894,6 @@ fn is_press(event: &Event) -> bool {
     matches!(event.event_type, EventType::KeyPress(_))
 }
 
-fn is_numpad_key(event: &Event) -> bool {
-    matches!(event.event_type, EventType::KeyPress(key) | EventType::KeyRelease(key) if match key {
-        Key::Kp0 | Key::Kp1 | Key::Kp2 | Key::Kp3| Key::Kp4| Key::Kp5| Key::Kp6|
-        Key::Kp7| Key::Kp8| Key::Kp9 | Key::KpMinus | Key::KpMultiply |
-        Key::KpDivide | Key::KpPlus | Key::KpDecimal => true,
-        _ => false
-    })
-}
-
 pub fn translate_keyboard_mode(peer: &str, event: &Event, key_event: KeyEvent) -> Vec<KeyEvent> {
     let mut events: Vec<KeyEvent> = Vec::new();
     if let Some(unicode_info) = &event.unicode {