diff --git a/demos/life/life.cpp b/demos/life/life.cpp
index 91dc7f236b..44bca3027e 100644
--- a/demos/life/life.cpp
+++ b/demos/life/life.cpp
@@ -980,7 +980,7 @@ void LifeCanvas::OnScroll(wxScrollWinEvent& event)
         }
     }
 
-#ifdef __WXGTK__ // what about Motif?
+#if defined (__WXGTK__) || defined(__WXMOTIF__) // what about Motif?
     // wxGTK updates the thumb automatically (wxMSW doesn't); reset it back
     if (type != wxEVT_SCROLLWIN_THUMBTRACK)
     {