diff --git a/samples/treectrl/treetest.cpp b/samples/treectrl/treetest.cpp
index b090afb31b..722f5f4bdf 100644
--- a/samples/treectrl/treetest.cpp
+++ b/samples/treectrl/treetest.cpp
@@ -260,9 +260,11 @@ MyFrame::MyFrame(const wxString& title, int x, int y, int w, int h)
     SetMenuBar(menu_bar);
 #endif // wxUSE_MENUS
 
+    m_panel = new wxPanel(this);
+
 #if wxUSE_LOG
     // create the controls
-    m_textCtrl = new wxTextCtrl(this, wxID_ANY, wxT(""),
+    m_textCtrl = new wxTextCtrl(m_panel, wxID_ANY, wxT(""),
                                 wxDefaultPosition, wxDefaultSize,
                                 wxTE_MULTILINE | wxSUNKEN_BORDER);
 #endif // wxUSE_LOG
@@ -321,7 +323,7 @@ void MyFrame::CreateTreeWithDefStyle()
 
 void MyFrame::CreateTree(long style)
 {
-    m_treeCtrl = new MyTreeCtrl(this, TreeTest_Ctrl,
+    m_treeCtrl = new MyTreeCtrl(m_panel, TreeTest_Ctrl,
                                 wxDefaultPosition, wxDefaultSize,
                                 style);
     Resize();
diff --git a/samples/treectrl/treetest.h b/samples/treectrl/treetest.h
index 21e93d7d8b..1b8f1bc7cd 100644
--- a/samples/treectrl/treetest.h
+++ b/samples/treectrl/treetest.h
@@ -229,6 +229,7 @@ private:
     void CreateTreeWithDefStyle();
     void CreateTree(long style);
 
+    wxPanel *m_panel;
     MyTreeCtrl *m_treeCtrl;
 #if wxUSE_LOG
     wxTextCtrl *m_textCtrl;