diff --git a/src/qt/walletcontroller.h b/src/qt/walletcontroller.h
--- a/src/qt/walletcontroller.h
+++ b/src/qt/walletcontroller.h
@@ -14,6 +14,8 @@
 #include <memory>
 #include <vector>
 
+#include <QThread>
+
 class OptionsModel;
 class PlatformStyle;
 
@@ -54,6 +56,7 @@
                    QByteArray transaction);
 
 private:
+    QThread m_activity_thread;
     interfaces::Node &m_node;
     const PlatformStyle *const m_platform_style;
     OptionsModel *const m_options_model;
diff --git a/src/qt/walletcontroller.cpp b/src/qt/walletcontroller.cpp
--- a/src/qt/walletcontroller.cpp
+++ b/src/qt/walletcontroller.cpp
@@ -28,11 +28,16 @@
     for (std::unique_ptr<interfaces::Wallet> &wallet : m_node.getWallets()) {
         getOrCreateWallet(std::move(wallet));
     }
+
+    m_activity_thread.start();
 }
 
 // Not using the default destructor because not all member types definitions are
 // available in the header, just forward declared.
-WalletController::~WalletController() {}
+WalletController::~WalletController() {
+    m_activity_thread.quit();
+    m_activity_thread.wait();
+}
 
 std::vector<WalletModel *> WalletController::getWallets() const {
     QMutexLocker locker(&m_mutex);