diff --git a/hub/executor/executor.go b/hub/executor/executor.go
index 8cb8358f..b7111c14 100644
--- a/hub/executor/executor.go
+++ b/hub/executor/executor.go
@@ -491,7 +491,7 @@ func updateIPTables(cfg *config.Config) {
 }
 
 func Shutdown() {
-	listener.Cleanup(false)
+	listener.Cleanup()
 	tproxy.CleanupTProxyIPTables()
 	resolver.StoreFakePoolState()
 
diff --git a/listener/listener.go b/listener/listener.go
index 9b4840e1..b1d59d49 100644
--- a/listener/listener.go
+++ b/listener/listener.go
@@ -902,6 +902,6 @@ func closeTunListener() {
 	}
 }
 
-func Cleanup(wait bool) {
+func Cleanup() {
 	closeTunListener()
 }