diff --git a/vnt/Cargo.toml b/vnt/Cargo.toml
index 2ff4655..a58f0a4 100644
--- a/vnt/Cargo.toml
+++ b/vnt/Cargo.toml
@@ -30,7 +30,7 @@ spki = { version = "0.7.2", features = ["fingerprint", "alloc", "base64"], optio
 openssl-sys = { git = "https://github.com/lbl8603/rust-openssl", optional = true }
 libsm = { git = "https://github.com/lbl8603/libsm", optional = true }
 
-mio = { version = "0.8.10", features = ["os-poll", "net"] }
+mio = { version = "0.8.10", features = ["os-poll", "net", "os-ext"] }
 crossbeam-queue = "0.3.11"
 anyhow = "1.0.82"
 dns-parser = "0.8.0"
diff --git a/vnt/src/handle/tun_tap/unix.rs b/vnt/src/handle/tun_tap/unix.rs
index 0c52966..a397623 100644
--- a/vnt/src/handle/tun_tap/unix.rs
+++ b/vnt/src/handle/tun_tap/unix.rs
@@ -3,6 +3,7 @@ use crate::cipher::Cipher;
 use crate::external_route::ExternalRoute;
 use crate::handle::tun_tap::channel_group::GroupSyncSender;
 use crate::handle::{CurrentDeviceInfo, PeerDeviceInfo};
+#[cfg(feature = "ip_proxy")]
 use crate::ip_proxy::IpProxyMap;
 use crate::util::{SingleU64Adder, StopManager};
 use crossbeam_utils::atomic::AtomicCell;