diff --git a/src/order_backup.cpp b/src/order_backup.cpp
--- a/src/order_backup.cpp
+++ b/src/order_backup.cpp
@@ -186,7 +186,7 @@ CommandCost CmdClearOrderBackup(TileInde
 
 /**
  * Reset the OrderBackups from GUI/game logic.
- * @param tile     The tile of the order backup.
+ * @param t        The tile of the order backup.
  * @param from_gui Whether the call came from the GUI, i.e. whether
  *                 it must be synced over the network.
  */