diff --git a/contrib/include/wx/gizmos/editlbox.h b/contrib/include/wx/gizmos/editlbox.h
index f9f552795a..72d3949031 100644
--- a/contrib/include/wx/gizmos/editlbox.h
+++ b/contrib/include/wx/gizmos/editlbox.h
@@ -38,7 +38,7 @@ public:
                       const wxString& name = wxT("editableListBox"));
 
     void SetStrings(const wxArrayString& strings);
-    void GetStrings(wxArrayString& strings);
+    void GetStrings(wxArrayString& strings) const;
 
     wxListCtrl* GetListCtrl()       { return m_listCtrl; }
     wxBitmapButton* GetDelButton()  { return m_bDel; }
diff --git a/contrib/src/gizmos/editlbox.cpp b/contrib/src/gizmos/editlbox.cpp
index a9315781de..e7be1d4a0e 100644
--- a/contrib/src/gizmos/editlbox.cpp
+++ b/contrib/src/gizmos/editlbox.cpp
@@ -189,7 +189,7 @@ void wxEditableListBox::SetStrings(const wxArrayString& strings)
     m_listCtrl->SetItemState(0, wxLIST_STATE_SELECTED, wxLIST_STATE_SELECTED);
 }
 
-void wxEditableListBox::GetStrings(wxArrayString& strings)
+void wxEditableListBox::GetStrings(wxArrayString& strings) const
 {
     strings.Clear();