diff --git a/interface/wx/scrolwin.h b/interface/wx/scrolwin.h
index e1ecdc44a4..7b44ae250c 100644
--- a/interface/wx/scrolwin.h
+++ b/interface/wx/scrolwin.h
@@ -332,6 +332,8 @@ public:
             - wxSHOW_SB_DEFAULT: To restore the default behaviour described
                 above.
 
+        Note that the window must be created before calling this method.
+
         @param horz
             The desired visibility for the horizontal scrollbar.
         @param vert