diff --git a/server.go b/server.go
index 2641983..bb71de6 100644
--- a/server.go
+++ b/server.go
@@ -74,9 +74,18 @@ func (s *Server) RegisterService(name string, desc *ServiceDesc) {
 }
 
 func (s *Server) Serve(ctx context.Context, l net.Listener) error {
-	s.addListener(l)
+	s.mu.Lock()
+	s.addListenerLocked(l)
 	defer s.closeListener(l)
 
+	select {
+	case <-s.done:
+		s.mu.Unlock()
+		return ErrServerClosed
+	default:
+	}
+	s.mu.Unlock()
+
 	var (
 		backoff    time.Duration
 		handshaker = s.config.handshaker
@@ -188,9 +197,7 @@ func (s *Server) Close() error {
 	return err
 }
 
-func (s *Server) addListener(l net.Listener) {
-	s.mu.Lock()
-	defer s.mu.Unlock()
+func (s *Server) addListenerLocked(l net.Listener) {
 	s.listeners[l] = struct{}{}
 }