--- a/QTfrontend/net/proto.h	Sun Jun 10 18:56:51 2018 +0200
+++ b/QTfrontend/net/proto.h	Sun Jun 10 19:12:26 2018 +0200
@@ -22,7 +22,7 @@
 #include <QByteArray>
 #include <QString>
 #include <QStringList>
-
+#include <QObject>
 
 class HWProto : public QObject
 {