diff --git a/road_cmd.c b/road_cmd.c
--- a/road_cmd.c
+++ b/road_cmd.c
@@ -660,7 +660,7 @@ int32 CmdBuildRoadDepot(int x, int y, ui
 	return cost + _price.build_road_depot;
 }
 
-static int32 RemoveRoadDepot(uint tile, uint32 flags)
+static int32 RemoveRoadDepot(TileIndex tile, uint32 flags)
 {
 	if (!CheckTileOwnership(tile) && _current_player != OWNER_WATER)
 		return CMD_ERROR;