diff --git a/include/wx/mac/carbon/dirdlg.h b/include/wx/mac/carbon/dirdlg.h
index 734292ade3..06a4122af0 100644
--- a/include/wx/mac/carbon/dirdlg.h
+++ b/include/wx/mac/carbon/dirdlg.h
@@ -22,7 +22,7 @@ public:
     wxDirDialog(wxWindow *parent,
                 const wxString& message = wxDirSelectorPromptStr,
                 const wxString& defaultPath = _T(""),
-                long style = 0,
+                long style = wxDD_DEFAULT_STYLE,
                 const wxPoint& pos = wxDefaultPosition,
                 const wxSize& size = wxDefaultSize,
                 const wxString& name = wxDirDialogNameStr);
diff --git a/include/wx/mac/classic/dirdlg.h b/include/wx/mac/classic/dirdlg.h
index 734292ade3..06a4122af0 100644
--- a/include/wx/mac/classic/dirdlg.h
+++ b/include/wx/mac/classic/dirdlg.h
@@ -22,7 +22,7 @@ public:
     wxDirDialog(wxWindow *parent,
                 const wxString& message = wxDirSelectorPromptStr,
                 const wxString& defaultPath = _T(""),
-                long style = 0,
+                long style = wxDD_DEFAULT_STYLE,
                 const wxPoint& pos = wxDefaultPosition,
                 const wxSize& size = wxDefaultSize,
                 const wxString& name = wxDirDialogNameStr);
diff --git a/include/wx/msw/dirdlg.h b/include/wx/msw/dirdlg.h
index bf31a0063a..a53cd1fff8 100644
--- a/include/wx/msw/dirdlg.h
+++ b/include/wx/msw/dirdlg.h
@@ -22,7 +22,7 @@ public:
     wxDirDialog(wxWindow *parent,
                 const wxString& message = wxDirSelectorPromptStr,
                 const wxString& defaultPath = wxEmptyString,
-                long style = 0,
+                long style = wxDD_DEFAULT_STYLE,
                 const wxPoint& pos = wxDefaultPosition,
                 const wxSize& size = wxDefaultSize,
                 const wxString& name = wxDirDialogNameStr);