diff --git a/src/nanoemoji/parts.py b/src/nanoemoji/parts.py
index 3ae3a162..a800e217 100644
--- a/src/nanoemoji/parts.py
+++ b/src/nanoemoji/parts.py
@@ -23,7 +23,7 @@
 from typing import Iterable, List, MutableMapping, NewType, Set, Tuple, Union
 
 
-PathSource = Union[SVGShape, Iterable[SVGShape], "ReuseableParts", Path]
+PathSource = Union[SVGShape, Iterable[SVGShape], "ReuseableParts"]
 
 
 @lru_cache(maxsize=1)
@@ -76,9 +76,6 @@ def _add(self, shape: Shape):
         self._add_norm_path(norm, shape)
 
     def add(self, source: PathSource):
-        if isinstance(source, Path):
-            source = ReuseableParts.load(source)
-
         if isinstance(source, ReuseableParts):
             for normalized, shape_set in source.shape_sets.items():
                 for shape in shape_set:
diff --git a/tests/parts_test.py b/tests/parts_test.py
index 324ff45b..fa379390 100644
--- a/tests/parts_test.py
+++ b/tests/parts_test.py
@@ -78,7 +78,7 @@ def test_merge():
 
 def test_file_io():
     parts = ReuseableParts()
-    parts.add(locate_test_file("rect.svg"))
+    parts.add(ReuseableParts.load(locate_test_file("rect.svg")))
     check_num_shapes(parts, 1)
 
     tmp_dir = mkdtemp()