diff --git a/src/kmainwindow.cpp b/src/kmainwindow.cpp
--- a/src/kmainwindow.cpp
+++ b/src/kmainwindow.cpp
@@ -830,8 +830,6 @@
         if (dock) {
             connect(dock, &QDockWidget::dockLocationChanged,
                     this, &KMainWindow::setSettingsDirty);
-            connect(dock, &QDockWidget::visibilityChanged,
-                    this, &KMainWindow::setSettingsDirty, Qt::QueuedConnection);
             connect(dock, &QDockWidget::topLevelChanged,
                     this, &KMainWindow::setSettingsDirty);
 
@@ -857,8 +855,6 @@
         if (dock) {
             disconnect(dock, &QDockWidget::dockLocationChanged,
                        this, &KMainWindow::setSettingsDirty);
-            disconnect(dock, &QDockWidget::visibilityChanged,
-                       this, &KMainWindow::setSettingsDirty);
             disconnect(dock, &QDockWidget::topLevelChanged,
                        this, &KMainWindow::setSettingsDirty);
             dock->removeEventFilter(k_ptr->dockResizeListener);