diff --git a/include/wx/bookctrl.h b/include/wx/bookctrl.h
index 35d7bb45e9..0149ba4d94 100644
--- a/include/wx/bookctrl.h
+++ b/include/wx/bookctrl.h
@@ -311,6 +311,11 @@ protected:
     // Lay out controls
     virtual void DoSize();
 
+    // It is better to make this control transparent so that by default the controls on
+    // its pages are on the same colour background as the rest of the window. If the user
+    // prefers a coloured background they can set the background colour on the page panel
+    virtual bool HasTransparentBackground() wxOVERRIDE { return true; }
+
     // This method also invalidates the size of the controller and should be
     // called instead of just InvalidateBestSize() whenever pages are added or
     // removed as this also affects the controller
diff --git a/include/wx/choicebk.h b/include/wx/choicebk.h
index c56916f903..f32e8d3a0d 100644
--- a/include/wx/choicebk.h
+++ b/include/wx/choicebk.h
@@ -79,11 +79,6 @@ public:
     // returns the choice control
     wxChoice* GetChoiceCtrl() const { return (wxChoice*)m_bookctrl; }
 
-    // Override this to return true because the part of parent window
-    // background between our controlling wxChoice and the page area should
-    // show through.
-    virtual bool HasTransparentBackground() wxOVERRIDE { return true; }
-
 protected:
     virtual void DoSetWindowVariant(wxWindowVariant variant) wxOVERRIDE;