diff --git a/include/wx/dirdlg.h b/include/wx/dirdlg.h
index 7a849a713a..4698416fff 100644
--- a/include/wx/dirdlg.h
+++ b/include/wx/dirdlg.h
@@ -47,7 +47,9 @@ public:
                     const wxPoint& pos = wxDefaultPosition,
                     const wxSize& sz = wxDefaultSize,
                     const wxString& name = wxDirDialogNameStr)
-        : wxDialog(parent, wxID_ANY, title, pos, sz, style, name) {}
+        : wxDialog(parent, wxID_ANY, title, pos, sz, style, name)
+        , m_path(defaultPath)
+    {}
     wxDirDialogBase() {}
 
     virtual ~wxDirDialogBase() {}
diff --git a/src/generic/dirdlgg.cpp b/src/generic/dirdlgg.cpp
index e52fea9d91..2c50f0ec39 100644
--- a/src/generic/dirdlgg.cpp
+++ b/src/generic/dirdlgg.cpp
@@ -84,10 +84,12 @@ wxGenericDirDialog::wxGenericDirDialog(wxWindow* parent, const wxString& title,
     Create(parent, title, defaultPath, style, pos, sz, name);
 }
 
-bool wxGenericDirDialog::Create(wxWindow* parent, const wxString& title,
-                                       const wxString& defaultPath, long style,
-                                       const wxPoint& pos, const wxSize& sz,
-                                       const wxString& name)
+bool wxGenericDirDialog::Create(wxWindow* WXUNUSED(parent),
+                                const wxString& WXUNUSED(title),
+                                const wxString& defaultPath, long style,
+                                const wxPoint& WXUNUSED(pos),
+                                const wxSize& WXUNUSED(sz),
+                                const wxString& WXUNUSED(name))
 {
     wxBusyCursor cursor;