diff --git a/src/qt/peertablemodel.cpp b/src/qt/peertablemodel.cpp
--- a/src/qt/peertablemodel.cpp
+++ b/src/qt/peertablemodel.cpp
@@ -104,7 +104,7 @@
 
     // set up timer for auto refresh
     timer = new QTimer(this);
-    connect(timer, SIGNAL(timeout()), SLOT(refresh()));
+    connect(timer, &QTimer::timeout, this, &PeerTableModel::refresh);
     timer->setInterval(MODEL_UPDATE_DELAY);
 
     // load initial data