diff --git a/src/waypoint_gui.cpp b/src/waypoint_gui.cpp
--- a/src/waypoint_gui.cpp
+++ b/src/waypoint_gui.cpp
@@ -145,7 +145,7 @@ static const WindowDesc _waypoint_view_d
 	WDP_AUTO, WDP_AUTO, 260, 118, 260, 118,
 	WC_WAYPOINT_VIEW, WC_NONE,
 	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET | WDF_UNCLICK_BUTTONS | WDF_STICKY_BUTTON,
-	NULL, _nested_waypoint_view_widgets, lengthof(_nested_waypoint_view_widgets)
+	_nested_waypoint_view_widgets, lengthof(_nested_waypoint_view_widgets)
 );
 
 void ShowWaypointWindow(const Waypoint *wp)