diff --git a/tests/test_data/tilesets/individual_images/expected.py b/tests/test_data/tilesets/individual_images/expected.py
index 48487cb..c64f252 100644
--- a/tests/test_data/tilesets/individual_images/expected.py
+++ b/tests/test_data/tilesets/individual_images/expected.py
@@ -13,6 +13,7 @@ EXPECTED = tileset.TileSet(
     tile_width=32,
     version=1.2,
     type="tileset",
+    grid=tileset.Grid(orientation="orthogonal", width=1, height=1),
     tiles=[
         tileset.Tile(
             animation=[
diff --git a/tests/test_tileset.py b/tests/test_tileset.py
index 2d72dc1..12f1656 100644
--- a/tests/test_tileset.py
+++ b/tests/test_tileset.py
@@ -20,6 +20,7 @@ ALL_TILESET_DIRS = [
     TILE_SETS / "image_properties",
     TILE_SETS / "image_transparent_color",
     TILE_SETS / "image_tile_offset",
+    TILE_SETS / "individual_images",
 ]