diff --git a/src/road_cmd.cpp b/src/road_cmd.cpp
index 68bf3bd7c8..4ca894b75c 100644
--- a/src/road_cmd.cpp
+++ b/src/road_cmd.cpp
@@ -769,6 +769,7 @@ CommandCost CmdBuildRoad(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32
 							if ((flags & DC_EXEC) && IsStraightRoad(existing)) {
 								SetDisallowedRoadDirections(tile, dis_new);
 								MarkTileDirtyByTile(tile);
+								NotifyRoadLayoutChanged(CountBits(dis_existing) > CountBits(dis_new));
 							}
 							return CommandCost();
 						}