diff --git a/src/ai/api/ai_order.hpp b/src/ai/api/ai_order.hpp
--- a/src/ai/api/ai_order.hpp
+++ b/src/ai/api/ai_order.hpp
@@ -66,6 +66,8 @@ public:
 		AIOF_SERVICE_IF_NEEDED = 1 << 2,
 		/** Stop in the depot instead of only go there for servicing; only for depots. */
 		AIOF_STOP_IN_DEPOT     = 1 << 3,
+		/** Go to nearest depot. */
+		AIOF_GOTO_NEAREST_DEPOT = 1 << 4,
 
 		/** All flags related to non-stop settings. */
 		AIOF_NON_STOP_FLAGS    = AIOF_NON_STOP_INTERMEDIATE | AIOF_NON_STOP_DESTINATION,
@@ -74,7 +76,7 @@ public:
 		/** All flags related to loading. */
 		AIOF_LOAD_FLAGS        = AIOF_FULL_LOAD | AIOF_FULL_LOAD_ANY | AIOF_NO_LOAD,
 		/** All flags related to depots. */
-		AIOF_DEPOT_FLAGS       = AIOF_SERVICE_IF_NEEDED | AIOF_STOP_IN_DEPOT,
+		AIOF_DEPOT_FLAGS       = AIOF_SERVICE_IF_NEEDED | AIOF_STOP_IN_DEPOT | AIOF_GOTO_NEAREST_DEPOT,
 
 		/** For marking invalid order flags */
 		AIOF_INVALID           = 0xFFFF,