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-rw-r--r--rail_cmd.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/rail_cmd.c b/rail_cmd.c
index fddc3a546..171c48205 100644
--- a/rail_cmd.c
+++ b/rail_cmd.c
@@ -95,7 +95,7 @@ static bool CheckTrackCombination(TileIndex tile, TrackBits to_build, uint flags
/* So, we have a tile with tracks on it (and possibly signals). Let's see
* what tracks first */
current = GetTrackBits(tile);
- future = current & to_build;
+ future = current | to_build;
/* Are we really building something new? */
if (current == future) {