diff --git a/bin/ssmanager.rs b/bin/ssmanager.rs
index 392c7f55..bc8c81fd 100644
--- a/bin/ssmanager.rs
+++ b/bin/ssmanager.rs
@@ -29,6 +29,7 @@ use shadowsocks_service::{
 use self::common::logging;
 use self::common::{monitor, validator};
 
+#[allow(dead_code)]
 mod common;
 
 /// shadowsocks version