diff --git a/src/road_gui.cpp b/src/road_gui.cpp
index ce8faaf3d5..3723f675f2 100644
--- a/src/road_gui.cpp
+++ b/src/road_gui.cpp
@@ -339,7 +339,7 @@ static void BuildRoadToolbWndProc(Window *w, WindowEvent *e)
 	case WE_PLACE_PRESIZE: {
 		TileIndex tile = e->we.place.tile;
 
-		DoCommand(tile, 0x200 | _cur_roadtype, 0, DC_AUTO, CMD_BUILD_TUNNEL);
+		DoCommand(tile, 0x200 | RoadTypeToRoadTypes(_cur_roadtype), 0, DC_AUTO, CMD_BUILD_TUNNEL);
 		VpSetPresizeRange(tile, _build_tunnel_endtile == 0 ? tile : _build_tunnel_endtile);
 		break;
 	}