diff --git a/src/newgrf.cpp b/src/newgrf.cpp
index 634fd9a7ad..16ebf16b27 100644
--- a/src/newgrf.cpp
+++ b/src/newgrf.cpp
@@ -792,6 +792,10 @@ static bool RoadVehicleChangeInfo(uint engine, int numinfo, int prop, byte **buf
 				ei->base_intro = grf_load_dword(&buf);
 				break;
 
+			case 0x20: // Alter purchase list sort order
+				AlterVehicleListOrder(e->index, grf_load_byte(&buf));
+				break;
+
 			default:
 				ret = true;
 				break;
@@ -899,6 +903,10 @@ static bool ShipVehicleChangeInfo(uint engine, int numinfo, int prop, byte **buf
 				ei->base_intro = grf_load_dword(&buf);
 				break;
 
+			case 0x1B: // Alter purchase list sort order
+				AlterVehicleListOrder(e->index, grf_load_byte(&buf));
+				break;
+
 			default:
 				ret = true;
 				break;
@@ -1004,6 +1012,10 @@ static bool AircraftVehicleChangeInfo(uint engine, int numinfo, int prop, byte *
 				ei->base_intro = grf_load_dword(&buf);
 				break;
 
+			case 0x1B: // Alter purchase list sort order
+				AlterVehicleListOrder(e->index, grf_load_byte(&buf));
+				break;
+
 			default:
 				ret = true;
 				break;