diff --git a/src/world/map.h b/src/world/map.h
index 268fa010cd..04e78b63e8 100644
--- a/src/world/map.h
+++ b/src/world/map.h
@@ -285,7 +285,5 @@ void map_element_iterator_restart_for_tile(map_element_iterator *it);
 
 void map_remove_intersecting_walls(int x, int y, int z0, int z1, int direction);
 void map_update_tiles();
-void map_update_grass_length(int x, int y, rct_map_element *mapElement);
-void map_set_grass_length(int x, int y, rct_map_element *mapElement, int length);
 
 #endif
diff --git a/src/world/map_animation.c b/src/world/map_animation.c
index 4530df8237..5b188839f1 100644
--- a/src/world/map_animation.c
+++ b/src/world/map_animation.c
@@ -149,7 +149,7 @@ static bool map_animation_invalidate_queue_banner(int x, int y, int baseZ)
 		if (!(mapElement->properties.path.type & PATH_FLAG_QUEUE_BANNER))
 			continue;
 
-		int direction = ((mapElement->type >> 6) & 3) + RCT2_GLOBAL(RCT2_ADDRESS_CURRENT_ROTATION, uint8);
+		int direction = ((mapElement->type >> 6) + RCT2_GLOBAL(RCT2_ADDRESS_CURRENT_ROTATION, uint8)) & 3;
 		if (direction == MAP_ELEMENT_DIRECTION_NORTH || direction == MAP_ELEMENT_DIRECTION_EAST) {
 			baseZ = mapElement->base_height * 8;
 			map_invalidate_tile(x, y, baseZ + 16, baseZ + 30);