diff --git a/samples/xti/codereadercallback.h b/samples/xti/codereadercallback.h
index 18dbeab209..d6050a8662 100644
--- a/samples/xti/codereadercallback.h
+++ b/samples/xti/codereadercallback.h
@@ -11,6 +11,8 @@
 #ifndef _CODEDEPERSISTER_
 #define _CODEDEPERSISTER_
 
+#if wxUSE_EXTENDED_RTTI
+
 #include "wx/defs.h"
 #include "wx/sstream.h"
 
@@ -104,4 +106,6 @@ public:
     wxString ValueAsCode( const wxAny &param );
 };
 
+#endif // wxUSE_EXTENDED_RTTI
+
 #endif