diff --git a/control.go b/control.go
index a87bd2cd..8c2fa789 100644
--- a/control.go
+++ b/control.go
@@ -1104,6 +1104,7 @@ func handleTLSConfigure(w http.ResponseWriter, r *http.Request) {
 	// until all requests are finished, and _we_ are inside a request right now, so it will block indefinitely
 	if restartHTTPS {
 		go func() {
+			time.Sleep(time.Second) // TODO: could not find a way to reliably know that data was fully sent to client by https server, so we wait a bit to let response through before closing the server
 			httpsServer.cond.Broadcast()
 			if httpsServer.server != nil {
 				httpsServer.server.Shutdown(context.TODO())