diff --git a/src/ai/api/ai_rail.hpp b/src/ai/api/ai_rail.hpp
--- a/src/ai/api/ai_rail.hpp
+++ b/src/ai/api/ai_rail.hpp
@@ -24,13 +24,13 @@ public:
 		ERR_RAIL_BASE = AIError::ERR_CAT_RAIL << AIError::ERR_CAT_BIT_SIZE,
 
 		/** One-way roads cannot have crossings */
-		ERR_CROSSING_ON_ONEWAY_ROAD,       // [STR_ERR_CROSSING_ON_ONEWAY_ROAD]
+		ERR_CROSSING_ON_ONEWAY_ROAD,       // [STR_ERROR_CROSSING_ON_ONEWAY_ROAD]
 
 		/** Track not suitable for signals */
 		ERR_UNSUITABLE_TRACK,              // [STR_ERROR_NO_SUITABLE_RAILROAD_TRACK]
 
 		/** Non-uniform stations is diabled */
-		ERR_NONUNIFORM_STATIONS_DISABLED,  // [STR_NONUNIFORM_STATIONS_DISALLOWED]
+		ERR_NONUNIFORM_STATIONS_DISABLED,  // [STR_ERROR_NONUNIFORM_STATIONS_DISALLOWED]
 	};
 
 	/**