diff --git a/include/wx/msw/notebook.h b/include/wx/msw/notebook.h
index b0638808bf..4fd14d30da 100644
--- a/include/wx/msw/notebook.h
+++ b/include/wx/msw/notebook.h
@@ -40,14 +40,14 @@ public:
              const wxPoint& pos = wxDefaultPosition,
              const wxSize& size = wxDefaultSize,
              long style = 0,
-             const wxString& name = wxT("notebook"));
+             const wxString& name = wxNOTEBOOK_NAME);
     // Create() function
   bool Create(wxWindow *parent,
               wxWindowID id,
               const wxPoint& pos = wxDefaultPosition,
               const wxSize& size = wxDefaultSize,
               long style = 0,
-              const wxString& name = wxT("notebook"));
+              const wxString& name = wxNOTEBOOK_NAME);
 
   // accessors
   // ---------
diff --git a/include/wx/msw/treectrl.h b/include/wx/msw/treectrl.h
index da856922ab..55918f1451 100644
--- a/include/wx/msw/treectrl.h
+++ b/include/wx/msw/treectrl.h
@@ -76,7 +76,7 @@ public:
                const wxSize& size = wxDefaultSize,
                long style = wxTR_HAS_BUTTONS | wxTR_LINES_AT_ROOT,
                const wxValidator& validator = wxDefaultValidator,
-               const wxString& name = wxT("wxTreeCtrl"))
+               const wxString& name = wxTreeCtrlNameStr)
     {
         Create(parent, id, pos, size, style, validator, name);
     }
@@ -88,7 +88,7 @@ public:
                 const wxSize& size = wxDefaultSize,
                 long style = wxTR_HAS_BUTTONS | wxTR_LINES_AT_ROOT,
                 const wxValidator& validator = wxDefaultValidator,
-                const wxString& name = wxT("wxTreeCtrl"));
+                const wxString& name = wxTreeCtrlNameStr);
 
     // accessors
     // ---------