diff --git a/src/ai/trolly/pathfinder.cpp b/src/ai/trolly/pathfinder.cpp
--- a/src/ai/trolly/pathfinder.cpp
+++ b/src/ai/trolly/pathfinder.cpp
@@ -45,7 +45,7 @@ static bool IsRoad(TileIndex tile)
 {
 	return
 		// MP_ROAD, but not a road depot?
-		(IsTileType(tile, MP_ROAD) && !IsTileDepotType(tile, TRANSPORT_ROAD)) ||
+		(IsTileType(tile, MP_ROAD) && !IsDepotTypeTile(tile, TRANSPORT_ROAD)) ||
 		(IsTileType(tile, MP_TUNNELBRIDGE) && GetTunnelBridgeTransportType(tile) == TRANSPORT_ROAD);
 }