diff --git a/src/private/quick/DockWidgetInstantiator.cpp b/src/private/quick/DockWidgetInstantiator.cpp
index 5336a614..f2799889 100644
--- a/src/private/quick/DockWidgetInstantiator.cpp
+++ b/src/private/quick/DockWidgetInstantiator.cpp
@@ -42,11 +42,6 @@ DockWidgetQuick *DockWidgetInstantiator::dockWidget() const
     return m_dockWidget;
 }
 
-void DockWidgetInstantiator::classBegin()
-{
-    // Nothing interesting to do here.
-}
-
 void DockWidgetInstantiator::componentComplete()
 {
     if (m_uniqueName.isEmpty()) {
diff --git a/src/private/quick/DockWidgetInstantiator_p.h b/src/private/quick/DockWidgetInstantiator_p.h
index 5252a3f5..6ab120a0 100644
--- a/src/private/quick/DockWidgetInstantiator_p.h
+++ b/src/private/quick/DockWidgetInstantiator_p.h
@@ -48,7 +48,6 @@ public:
     DockWidgetQuick *dockWidget() const;
 
 protected:
-    void classBegin() override;
     void componentComplete() override;
 
 Q_SIGNALS:
diff --git a/src/private/quick/MainWindowInstantiator.cpp b/src/private/quick/MainWindowInstantiator.cpp
index 5b4dc801..98d89056 100644
--- a/src/private/quick/MainWindowInstantiator.cpp
+++ b/src/private/quick/MainWindowInstantiator.cpp
@@ -48,11 +48,6 @@ void MainWindowInstantiator::setOptions(int options)
     }
 }
 
-void MainWindowInstantiator::classBegin()
-{
-    // Nothing interesting to do here.
-}
-
 void MainWindowInstantiator::componentComplete()
 {
     if (m_uniqueName.isEmpty()) {
diff --git a/src/private/quick/MainWindowInstantiator_p.h b/src/private/quick/MainWindowInstantiator_p.h
index 5479fd2a..53ad60f6 100644
--- a/src/private/quick/MainWindowInstantiator_p.h
+++ b/src/private/quick/MainWindowInstantiator_p.h
@@ -40,7 +40,6 @@ public:
     void setOptions(int);
 
 protected:
-    void classBegin() override;
     void componentComplete() override;
 
 Q_SIGNALS: