diff --git a/interface/wx/rearrangectrl.h b/interface/wx/rearrangectrl.h
index 976fb50543..305fadcdb6 100644
--- a/interface/wx/rearrangectrl.h
+++ b/interface/wx/rearrangectrl.h
@@ -180,7 +180,7 @@ public:
     @library{wxcore}
     @category{ctrl}
  */
-class wxRearrangeCtrl
+class wxRearrangeCtrl : public wxPanel
 {
 public:
     /**
@@ -269,7 +269,7 @@ public:
     @library{wxcore}
     @category{cmndlg}
  */
-class wxRearrangeDialog
+class wxRearrangeDialog : public wxDialog
 {
 public:
     /**