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-rw-r--r--rail_cmd.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/rail_cmd.c b/rail_cmd.c
index 9b39295b8..45021856a 100644
--- a/rail_cmd.c
+++ b/rail_cmd.c
@@ -2064,8 +2064,8 @@ static void TileLoop_Track(TileIndex tile)
modify_me:;
/* tile changed? */
- if ( m2 != a2) {
- _m[tile].m2 = (_m[tile].m2 & ~RAIL_MAP2LO_GROUND_MASK) | a2;
+ if (m2 != a2) {
+ SB(_m[tile].m2, 0, 4, a2);
MarkTileDirtyByTile(tile);
}
}