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-rw-r--r--src/autoreplace_cmd.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/autoreplace_cmd.cpp b/src/autoreplace_cmd.cpp
index e62dbccda..776320e04 100644
--- a/src/autoreplace_cmd.cpp
+++ b/src/autoreplace_cmd.cpp
@@ -149,6 +149,8 @@ static int32 ReplaceVehicle(Vehicle **w, byte flags, int32 total_cost)
new_engine_type = EngineReplacementForPlayer(p, old_v->engine_type, old_v->group_id);
}
+ if (new_engine_type == INVALID_ENGINE) new_engine_type = old_v->engine_type;
+
replacement_cargo_type = GetNewCargoTypeForReplace(old_v, new_engine_type);
/* check if we can't refit to the needed type, so no replace takes place to prevent the vehicle from altering cargo type */