diff --git a/newgrf_station.c b/newgrf_station.c
index ab6d2fc591..a0a82df0bc 100644
--- a/newgrf_station.c
+++ b/newgrf_station.c
@@ -323,11 +323,11 @@ static void NewStationResolver(ResolverObject *res, const StationSpec *statspec,
 }
 
 
-SpriteID GetCustomStationRelocation(const StationSpec *statspec, const Station *st, TileIndex tile, CargoID ctype)
+SpriteID GetCustomStationRelocation(const StationSpec *statspec, const Station *st, TileIndex tile)
 {
 	const SpriteGroup *group;
 	ResolverObject object;
-	ctype = (st == NULL) ? GC_PURCHASE : GC_DEFAULT_NA;
+	CargoID ctype = (st == NULL) ? GC_PURCHASE : GC_DEFAULT_NA;
 
 	NewStationResolver(&object, statspec, st, tile);
 
diff --git a/newgrf_station.h b/newgrf_station.h
index 6680334ac1..d14d215d8c 100644
--- a/newgrf_station.h
+++ b/newgrf_station.h
@@ -96,9 +96,9 @@ void SetCustomStationSpec(StationSpec *statspec);
 const StationSpec *GetCustomStationSpec(StationClassID sclass, uint station);
 
 /* Get sprite offset for a given custom station and station structure (may be
- * NULL if ctype is set - that means we are in a build dialog). The station
- * structure is used for variational sprite groups. */
-SpriteID GetCustomStationRelocation(const StationSpec *statspec, const Station *st, TileIndex tile, CargoID ctype);
+ * NULL - that means we are in a build dialog). The station structure is used
+ * for variational sprite groups. */
+SpriteID GetCustomStationRelocation(const StationSpec *statspec, const Station *st, TileIndex tile);
 
 /* Allocate a StationSpec to a Station. This is called once per build operation. */
 int AllocateSpecToStation(const StationSpec *statspec, Station *st, bool exec);
diff --git a/rail_cmd.c b/rail_cmd.c
index 34ba583096..fdadfddfeb 100644
--- a/rail_cmd.c
+++ b/rail_cmd.c
@@ -1324,7 +1324,7 @@ static void DrawTile_Track(TileInfo *ti)
 				DrawTileSeqStruct const *seq;
 				// emulate station tile - open with building
 				const DrawTileSprites *cust = &statspec->renderdata[2 + GetWaypointAxis(ti->tile)];
-				uint32 relocation = GetCustomStationRelocation(statspec, ComposeWaypointStation(ti->tile), ti->tile, 0);
+				uint32 relocation = GetCustomStationRelocation(statspec, ComposeWaypointStation(ti->tile), ti->tile);
 
 				/* We don't touch the 0x8000 bit. In all this
 				 * waypoint code, it is used to indicate that
diff --git a/station_cmd.c b/station_cmd.c
index 8fd4d62d5d..b488fa2126 100644
--- a/station_cmd.c
+++ b/station_cmd.c
@@ -1990,7 +1990,7 @@ static void DrawTile_Station(TileInfo *ti)
 		if (statspec != NULL) {
 			uint tile = GetStationGfx(ti->tile);
 
-			relocation = GetCustomStationRelocation(statspec, st, ti->tile, 0);
+			relocation = GetCustomStationRelocation(statspec, st, ti->tile);
 
 			/* Ensure the chosen tile layout is valid for this custom station */
 			t = &statspec->renderdata[tile < statspec->tiles ? tile : GetRailStationAxis(ti->tile)];
diff --git a/waypoint.c b/waypoint.c
index 8e363ea5fd..e4fef4ab7f 100644
--- a/waypoint.c
+++ b/waypoint.c
@@ -405,7 +405,7 @@ void DrawWaypointSprite(int x, int y, int stat_id, RailType railtype)
 		return;
 	}
 
-	relocation = GetCustomStationRelocation(statspec, NULL, INVALID_TILE, 1);
+	relocation = GetCustomStationRelocation(statspec, NULL, INVALID_TILE);
 	// emulate station tile - open with building
 	// add 1 to get the other direction
 	cust = &statspec->renderdata[2];