diff --git a/src/script/script_instance.hpp b/src/script/script_instance.hpp
--- a/src/script/script_instance.hpp
+++ b/src/script/script_instance.hpp
@@ -217,7 +217,7 @@ public:
 	 * @param cmd cmd as given to DoCommandPInternal.
 	 * @return true if we handled result.
 	 */
-	bool DoCommandCallback(const CommandCost &result, TileIndex tile, const CommandDataBuffer &data, CommandDataBuffer result_data, Commands cmd);
+	bool DoCommandCallback(const CommandCost &result, const CommandDataBuffer &data, CommandDataBuffer result_data, Commands cmd);
 
 	/**
 	 * Insert an event for this script.