diff --git a/samples/widgets/button.cpp b/samples/widgets/button.cpp
index 4a17b65be1..4023441785 100644
--- a/samples/widgets/button.cpp
+++ b/samples/widgets/button.cpp
@@ -341,7 +341,7 @@ void ButtonWidgetsPage::CreateButton()
             // fall through
 
         case ButtonVAlign_Centre:
-            flags |= wxALIGN_CENTRE_VERTICAL;
+            // centre vertical alignment is the default (no style)
             break;
 
         case ButtonVAlign_Bottom: