diff --git a/src/Gui/ToolBarManager.cpp b/src/Gui/ToolBarManager.cpp
index 61d6de016b..9dc81a36d8 100644
--- a/src/Gui/ToolBarManager.cpp
+++ b/src/Gui/ToolBarManager.cpp
@@ -183,10 +183,10 @@ void ToolBarManager::setup(ToolBarItem* toolBarItems)
     if (!_ActionWidget) {
         _ActionWidget = new QWidget(getMainWindow());
         _ActionWidget->setObjectName(QStringLiteral("_fc_action_widget_"));
-		// Although _ActionWidget has zero size, on MacOS it somehow has a
-		// 'phantom' size without any visible content and will block the top
-		// left tool buttons of the application main window. So we move it out
-		// of the way.
+		/* Although _ActionWidget has zero size, it somehow has a
+		'phantom' size without any visible content and will block the top
+		left tool buttons and menus of the application main window.
+		Therefore it is moved out of the way. */
 		_ActionWidget->move(QPoint(-100,-100));
     }
     else {