diff --git a/src/newgrf_gui.cpp b/src/newgrf_gui.cpp
--- a/src/newgrf_gui.cpp
+++ b/src/newgrf_gui.cpp
@@ -489,7 +489,7 @@ static const NWidgetPart _nested_newgrf_
 static const WindowDesc _newgrf_add_dlg_desc(
 	WDP_CENTER, WDP_CENTER, 306, 347,
 	WC_SAVELOAD, WC_NONE,
-	WDF_STD_TOOLTIPS | WDF_DEF_WIDGET | WDF_STD_BTN | WDF_UNCLICK_BUTTONS | WDF_RESIZABLE,
+	WDF_UNCLICK_BUTTONS,
 	_nested_newgrf_add_dlg_widgets, lengthof(_nested_newgrf_add_dlg_widgets)
 );
 
@@ -1051,7 +1051,7 @@ static const NWidgetPart _nested_newgrf_
 static const WindowDesc _newgrf_desc(
 	WDP_CENTER, WDP_CENTER, 300, 263,
 	WC_GAME_OPTIONS, WC_NONE,
-	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET | WDF_UNCLICK_BUTTONS | WDF_RESIZABLE,
+	WDF_UNCLICK_BUTTONS,
 	_nested_newgrf_widgets, lengthof(_nested_newgrf_widgets)
 );