diff --git a/src/mainwindow.h b/src/mainwindow.h
index 278c2b1..c032634 100644
--- a/src/mainwindow.h
+++ b/src/mainwindow.h
@@ -31,6 +31,6 @@ class MainWindow : public QMainWindow
         Network *network;
         Handler *handler;
 
-    bool receive;
+    bool receive = false;
     const QString my_ipv6 = Network::local_ipv6();
 };