diff --git a/interface/wx/persist/combobox.h b/interface/wx/persist/combobox.h
index 5b7e2d81b6..34bab51187 100644
--- a/interface/wx/persist/combobox.h
+++ b/interface/wx/persist/combobox.h
@@ -30,6 +30,8 @@
     combo->SetSelection(0);
 
     @endcode
+
+    @since 3.1.5
  */
 class wxPersistentComboBox : public wxPersistentWindow<wxComboBox>
 {