diff --git a/src/newgrf_spritegroup.h b/src/newgrf_spritegroup.h
--- a/src/newgrf_spritegroup.h
+++ b/src/newgrf_spritegroup.h
@@ -184,6 +184,9 @@ struct ResolverObject {
 		} vehicle;
 		struct {
 			TileIndex tile;
+		} canal;
+		struct {
+			TileIndex tile;
 			const struct Station *st;
 			const struct StationSpec *statspec;
 			CargoID cargo_type;