diff --git a/modules/gui/src/panels/panel_bar.hh b/modules/gui/src/panels/panel_bar.hh
index 474146b5b75cbdd0dcb780b576167fe39edd73c0..277d4207813579ae30e532601f68233faf9b4aa5 100644
--- a/modules/gui/src/panels/panel_bar.hh
+++ b/modules/gui/src/panels/panel_bar.hh
@@ -80,10 +80,10 @@ public:
   int GetIndex(Widget* widget);
 
   /// \brief Begin with dragging widgets
-  /// This method is called by the \ref Panels class. Read more about this method at \ref Panels::StartDrag() .
+  /// This method is called by the \ref PanelManager class. Read more about this method at \ref PanelManager::StartDrag() .
   void DragEnter();
   /// \brief Stop dragging widgets
-  /// This method is called by the \ref Panels class. Read more about this method at \ref Panels::EndDrag() .
+  /// This method is called by the \ref PanelManager class. Read more about this method at \ref PanelManager::EndDrag() .
   void EndDrag();
 
   /// \brief Get action which changes the visibility of this widget
diff --git a/modules/gui/src/panels/panel_manager.hh b/modules/gui/src/panels/panel_manager.hh
index e4e2a2d5f6da0186b36e7d1134e2cf466ade1e5a..23edf3ecf0e678972122482e1d9fa1c59df1fb5f 100644
--- a/modules/gui/src/panels/panel_manager.hh
+++ b/modules/gui/src/panels/panel_manager.hh
@@ -79,7 +79,7 @@ public:
   /// \param pos Indicates which PanelBar is affected
   /// \param class_name the class_name of the widget you would like to add.
   /// \param is_hidden marks if the class should be displayed in the gui. Default the widget will be shown.
-  void AddWidgetByName(PanelPosition pos, const QString& class_name, bool hidden=false);
+  void AddWidgetByName(PanelPosition pos, const QString& class_name, bool is_hidden=false);
 
   /// \brief Replace a Widget with another Widget
   /// With this Method you can replace a Widget which is in a PanelBar with another Widget.
diff --git a/modules/gui/src/panels/panel_widget_container.hh b/modules/gui/src/panels/panel_widget_container.hh
index ea8c3e0679f9781e4232ed6f59bfeb8a287e1b6b..ead27c6ebf51f86fbf4537306ede8cd499a83ddc 100644
--- a/modules/gui/src/panels/panel_widget_container.hh
+++ b/modules/gui/src/panels/panel_widget_container.hh
@@ -54,11 +54,11 @@ public:
   /// \param show if show if false hide the widget even the position is not correct.
   virtual void ShowWidget(Widget* widget,int pos,bool show = true) = 0;
   /// \brief Begin with dragging widgets
-  /// This method is initially called in the \ref Panels class in the \ref Panels::StartDrag() method.
+  /// This method is initially called in the \ref PanelManager class in the \ref PanelManager::StartDrag() method.
 
   virtual void StartDrag();
   /// \brief Stop dragging widgets
-  /// This method is initially called in the \ref Panels class in the \ref Panels::EndDrag() method.
+  /// This method is initially called in the \ref PanelManager class in the \ref PanelManager::EndDrag() method.
   virtual void EndDrag();
 
   /// \brief Get the PanelBar