diff --git a/src/lib.rs b/src/lib.rs
index 4cbffa0..69d97c9 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -4,7 +4,7 @@ use crate::{
     socks::SocksProxyManager,
     tun2proxy::{ConnectionManager, TunToProxy},
 };
-use socks5_impl::protocol::{UserKey, Version};
+use socks5_impl::protocol::UserKey;
 use std::{
     net::{SocketAddr, ToSocketAddrs},
     rc::Rc,
@@ -145,10 +145,10 @@ pub fn tun_to_proxy<'a>(
     let mut ttp = TunToProxy::new(interface, options)?;
     let credentials = proxy.credentials.clone();
     let server = proxy.addr;
-    #[rustfmt::skip]
+    use socks5_impl::protocol::Version::{V4, V5};
     let mgr = match proxy.proxy_type {
-        ProxyType::Socks4 => Rc::new(SocksProxyManager::new(server, Version::V4, credentials)) as Rc<dyn ConnectionManager>,
-        ProxyType::Socks5 => Rc::new(SocksProxyManager::new(server, Version::V5, credentials)) as Rc<dyn ConnectionManager>,
+        ProxyType::Socks4 => Rc::new(SocksProxyManager::new(server, V4, credentials)) as Rc<dyn ConnectionManager>,
+        ProxyType::Socks5 => Rc::new(SocksProxyManager::new(server, V5, credentials)) as Rc<dyn ConnectionManager>,
         ProxyType::Http => Rc::new(HttpManager::new(server, credentials)) as Rc<dyn ConnectionManager>,
     };
     ttp.set_connection_manager(Some(mgr));