@@ -249,7 +249,7 @@ static void ReplaceVehicleWndProc(Window
* Either list is empty
* or The selected replacement engine has a replacement (to prevent loops)
* or The right list (new replacement) has the existing replacement vehicle selected */
SetWindowWidgetDisabledState(w, 4,
w->SetWidgetDisabledState(4,
selected_id[0] == INVALID_ENGINE ||
selected_id[1] == INVALID_ENGINE ||
EngineReplacementForPlayer(p, selected_id[1], selected_group) != INVALID_ENGINE ||
@@ -258,7 +258,7 @@ static void ReplaceVehicleWndProc(Window
/* Disable the "Stop Replacing" button if:
* The left list (existing vehicle) is empty
* or The selected vehicle has no replacement set up */
SetWindowWidgetDisabledState(w, 6,
w->SetWidgetDisabledState(6,
!EngineHasReplacementForPlayer(p, selected_id[0], selected_group));