From b9eb9a4af9ded220a31d38b7d705e1c039e007e6 Mon Sep 17 00:00:00 2001
From: Jonathan G Rennison <j.g.rennison@gmail.com>
Date: Sat, 18 May 2019 18:31:00 +0100
Subject: Fix #7594: Max speed rendered incorrectly in road vehicle purchase
 window when using original acceleration model (#7597)

An incorrect DParam index was used.
---
 src/build_vehicle_gui.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/build_vehicle_gui.cpp b/src/build_vehicle_gui.cpp
index ba3eaf4d0..2778ccd55 100644
--- a/src/build_vehicle_gui.cpp
+++ b/src/build_vehicle_gui.cpp
@@ -685,7 +685,7 @@ static int DrawRoadVehPurchaseInfo(int left, int right, int y, EngineID engine_n
 			DrawString(left, right, y, STR_PURCHASE_INFO_COST_REFIT_SPEED);
 		} else {
 			SetDParam(0, e->GetCost());
-			SetDParam(2, e->GetDisplayMaxSpeed());
+			SetDParam(1, e->GetDisplayMaxSpeed());
 			DrawString(left, right, y, STR_PURCHASE_INFO_COST_SPEED);
 		}
 		y += FONT_HEIGHT_NORMAL;
-- 
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