diff --git a/caddyhttp/httpserver/server.go b/caddyhttp/httpserver/server.go
index 626496d3..6a51aa9c 100644
--- a/caddyhttp/httpserver/server.go
+++ b/caddyhttp/httpserver/server.go
@@ -305,7 +305,7 @@ func (s *Server) Serve(ln net.Listener) error {
 	}
 
 	err := s.Server.Serve(ln)
-	if QUIC {
+	if s.quicServer != nil {
 		s.quicServer.Close()
 	}
 	return err