diff --git a/src/msw/notebook.cpp b/src/msw/notebook.cpp
index bfedadbffb..dad5dda20f 100644
--- a/src/msw/notebook.cpp
+++ b/src/msw/notebook.cpp
@@ -131,7 +131,6 @@ END_EVENT_TABLE()
 
 #else
 IMPLEMENT_DYNAMIC_CLASS(wxNotebook, wxBookCtrlBase)
-IMPLEMENT_DYNAMIC_CLASS(wxNotebookPageInfo, wxObject )
 #endif
 
 // ============================================================================