diff --git a/kstyle/breezeshadowhelper.h b/kstyle/breezeshadowhelper.h
--- a/kstyle/breezeshadowhelper.h
+++ b/kstyle/breezeshadowhelper.h
@@ -95,6 +95,9 @@
         //* unregister widget
         void objectDeleted( QObject* );
 
+        //* initializes the Wayland specific parts
+        void initializeWayland();
+
         protected:
 
         //* true if widget is a menu
@@ -140,9 +143,6 @@
         //* uninstall shadow on given widget for Wayland
         void uninstallWaylandShadows( QWidget* ) const;
 
-        //* initializes the Wayland specific parts
-        void initializeWayland();
-
         //* gets the shadow margins for the given widget
         QMargins shadowMargins( QWidget* ) const;
 
diff --git a/kstyle/breezeshadowhelper.cpp b/kstyle/breezeshadowhelper.cpp
--- a/kstyle/breezeshadowhelper.cpp
+++ b/kstyle/breezeshadowhelper.cpp
@@ -64,7 +64,8 @@
         , _shmPool( Q_NULLPTR )
         #endif
     {
-        initializeWayland();
+        // delay till event dispatcher is running as Wayland is highly async
+        QMetaObject::invokeMethod(this, "initializeWayland", Qt::QueuedConnection);
     }
 
     //_______________________________________________________