diff --git a/grace.go b/grace.go
index 5f59f77..9d55fbb 100644
--- a/grace.go
+++ b/grace.go
@@ -183,7 +183,7 @@ func Inherit() (listeners []Listener, err error) {
 		if err != nil {
 			return nil, err
 		}
-		l := tmp.(*net.TCPListener)
+		l := tmp.(Listener)
 		listeners = append(listeners, NewListener(l))
 	}
 	return