diff --git a/src/tile_mate/stitcher.py b/src/tile_mate/stitcher.py
index ab0ba64..c605e06 100644
--- a/src/tile_mate/stitcher.py
+++ b/src/tile_mate/stitcher.py
@@ -65,7 +65,7 @@ def toggle_hansen_url(url: str) -> str:
 
     if year is not None:
         if tile_key not in DATASETS_WITH_YEAR:
-            raise NotImplementedError('Year is only supported ' f'with {DATASETS_WITH_YEAR}')
+            raise ValueError('Year is only supported ' f'with {DATASETS_WITH_YEAR}')
         if tile_key == 'hansen_annual_mosaic':
             def update_hansen_landsat_mosaic_url_p(url):
                 return update_hansen_landsat_mosaic_url(url, year)
diff --git a/tests/test_stitch_api.py b/tests/test_stitch_api.py
index 62c2e1b..aa64560 100644
--- a/tests/test_stitch_api.py
+++ b/tests/test_stitch_api.py
@@ -65,7 +65,7 @@ def test_cop100_dataset(year: int):
 
 
 @pytest.mark.parametrize(
-    'dataset_shortname', ['hansen_gain', 'hansen_tree', 'hansen_lossyear', 'hand', 'pekel_water_occ_2021']
+    'dataset_shortname', ['hansen_gain', 'hansen_treecover_2000', 'hansen_lossyear', 'hand', 'pekel_water_occ_2021']
 )
 def test_no_kwarg_datasets(dataset_shortname):
     bounds = [-120.45, 34.85, -120.15, 34.95]