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-rw-r--r--src/ai/api/ai_marine.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/ai/api/ai_marine.cpp b/src/ai/api/ai_marine.cpp
index 59e9d9f5f..3890d2108 100644
--- a/src/ai/api/ai_marine.cpp
+++ b/src/ai/api/ai_marine.cpp
@@ -59,7 +59,7 @@
/* Tiles not neighbouring */
if (::DistanceManhattan(t1, t2) != 1) return false;
- DiagDirection to_other_tile = ::DiagdirBetweenTiles(t1, t2);
+ DiagDirection to_other_tile = ::DiagdirBetweenTiles(t2, t1);
/* Determine the reachable tracks from the shared edge */
TrackBits gtts1 = ::TrackStatusToTrackBits(::GetTileTrackStatus(t1, TRANSPORT_WATER, 0, to_other_tile)) & ::DiagdirReachesTracks(to_other_tile);