diff --git a/modules/rtile_map/tile_map.cpp b/modules/rtile_map/tile_map.cpp
index 8a106e322..21bb3b9f0 100644
--- a/modules/rtile_map/tile_map.cpp
+++ b/modules/rtile_map/tile_map.cpp
@@ -159,7 +159,11 @@ void RTileMap::_update_quadrant_transform() {
 
 	Transform2D nav_rel;
 	if (bake_navigation) {
-		nav_rel = get_relative_transform_to_parent(navigation);
+		if (navigation) {
+			nav_rel = get_relative_transform_to_parent(navigation);
+		} else {
+			nav_rel = get_transform();
+		}
 	}
 
 	for (Map<PosKey, Quadrant>::Element *E = quadrant_map.front(); E; E = E->next()) {
@@ -355,7 +359,11 @@ void RTileMap::update_dirty_quadrants() {
 	Vector2 tofs = get_cell_draw_offset();
 	Transform2D nav_rel;
 	if (navigation) {
-		nav_rel = get_relative_transform_to_parent(navigation);
+		if (navigation) {
+			nav_rel = get_relative_transform_to_parent(navigation);
+		} else {
+			nav_rel = get_transform();
+		}
 	}
 
 	Vector2 qofs;