diff --git a/src/plugins/platforms/wayland/global/qwaylandclientextension.cpp b/src/plugins/platforms/wayland/global/qwaylandclientextension.cpp
index 125b1e19d94..a0d35a15fb3 100644
--- a/src/plugins/platforms/wayland/global/qwaylandclientextension.cpp
+++ b/src/plugins/platforms/wayland/global/qwaylandclientextension.cpp
@@ -71,10 +71,13 @@ void QWaylandClientExtensionPrivate::handleRegistryGlobal(void *data, ::wl_regis
     }
 }
 
-void QWaylandClientExtension::addRegistryListener()
+void QWaylandClientExtension::initialize()
 {
     Q_D(QWaylandClientExtension);
-    d->waylandIntegration->display()->addRegistryListener(&QWaylandClientExtensionPrivate::handleRegistryGlobal, this);
+    if (!d->registered) {
+        d->waylandIntegration->display()->addRegistryListener(&QWaylandClientExtensionPrivate::handleRegistryGlobal, this);
+        d->registered = true;
+    }
 }
 
 QWaylandClientExtension::QWaylandClientExtension(const int ver)
@@ -85,7 +88,7 @@ QWaylandClientExtension::QWaylandClientExtension(const int ver)
 
     // The registry listener uses virtual functions and we don't want it to be called from
     // the constructor.
-    QMetaObject::invokeMethod(this, "addRegistryListener", Qt::QueuedConnection);
+    QMetaObject::invokeMethod(this, "initialize", Qt::QueuedConnection);
 }
 
 QtWaylandClient::QWaylandIntegration *QWaylandClientExtension::integration() const
diff --git a/src/plugins/platforms/wayland/global/qwaylandclientextension.h b/src/plugins/platforms/wayland/global/qwaylandclientextension.h
index 98272e5710e..014edce1d69 100644
--- a/src/plugins/platforms/wayland/global/qwaylandclientextension.h
+++ b/src/plugins/platforms/wayland/global/qwaylandclientextension.h
@@ -76,8 +76,8 @@ Q_SIGNALS:
     void versionChanged();
     void activeChanged();
 
-private Q_SLOTS:
-    void addRegistryListener();
+protected Q_SLOTS:
+    void initialize();
 };
 
 template <typename T>
diff --git a/src/plugins/platforms/wayland/global/qwaylandclientextension_p.h b/src/plugins/platforms/wayland/global/qwaylandclientextension_p.h
index 69cc46a0a48..9091efbe558 100644
--- a/src/plugins/platforms/wayland/global/qwaylandclientextension_p.h
+++ b/src/plugins/platforms/wayland/global/qwaylandclientextension_p.h
@@ -68,6 +68,7 @@ public:
     QtWaylandClient::QWaylandIntegration *waylandIntegration = nullptr;
     int version = -1;
     bool active = false;
+    bool registered = false;
 };
 
 class Q_WAYLAND_CLIENT_EXPORT QWaylandClientExtensionTemplatePrivate : public QWaylandClientExtensionPrivate