diff --git a/src/waypoint_base.h b/src/waypoint_base.h
--- a/src/waypoint_base.h
+++ b/src/waypoint_base.h
@@ -15,7 +15,7 @@
 #include "base_station_base.h"
 
 struct Waypoint : SpecializedStation<Waypoint, true> {
-	uint16 town_cn;    ///< The Nth waypoint for this town (consecutive number)
+	uint16 town_cn;    ///< The N-1th waypoint for this town (consecutive number)
 
 	Waypoint(TileIndex tile = INVALID_TILE) : SpecializedStation<Waypoint, true>(tile) { }
 	~Waypoint();