diff --git a/src/generic/collpaneg.cpp b/src/generic/collpaneg.cpp
index 5a971e99a9..85874c573f 100644
--- a/src/generic/collpaneg.cpp
+++ b/src/generic/collpaneg.cpp
@@ -112,7 +112,7 @@ bool wxGenericCollapsiblePane::Create(wxWindow *parent,
 
     // do not set sz as our sizers since we handle the pane window without using sizers
     m_pPane = new wxPanel(this, wxID_ANY, wxDefaultPosition, wxDefaultSize,
-                          wxTAB_TRAVERSAL|wxNO_BORDER);
+                          wxTAB_TRAVERSAL|wxNO_BORDER, wxT("wxCollapsiblePanePane") );
 
     // start as collapsed:
     m_pPane->Hide();
diff --git a/src/gtk/collpane.cpp b/src/gtk/collpane.cpp
index fcbc02edfc..804cdb4d9a 100644
--- a/src/gtk/collpane.cpp
+++ b/src/gtk/collpane.cpp
@@ -198,7 +198,7 @@ bool wxCollapsiblePane::Create(wxWindow *parent,
 
     // this the real "pane"
     m_pPane = new wxPanel(this, wxID_ANY, wxDefaultPosition, wxDefaultSize,
-                           wxTAB_TRAVERSAL|wxNO_BORDER);
+                           wxTAB_TRAVERSAL|wxNO_BORDER, wxT("wxCollapsiblePanePane") );
 
     gtk_widget_show(m_widget);
     m_parent->DoAddChild( this );