diff --git a/src/qt/clientmodel.cpp b/src/qt/clientmodel.cpp
--- a/src/qt/clientmodel.cpp
+++ b/src/qt/clientmodel.cpp
@@ -40,7 +40,7 @@
     peerTableModel = new PeerTableModel(m_node, this);
     banTableModel = new BanTableModel(m_node, this);
     pollTimer = new QTimer(this);
-    connect(pollTimer, SIGNAL(timeout()), this, SLOT(updateTimer()));
+    connect(pollTimer, &QTimer::timeout, this, &ClientModel::updateTimer);
     pollTimer->start(MODEL_UPDATE_DELAY);
 
     subscribeToCoreSignals();