diff --git a/MANIFEST.in b/MANIFEST.in
index f4540c2..2d26971 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -3,3 +3,4 @@ graft jupyter-config
 
 include LICENSE
 include pyproject.toml
+include reactpy_jupyter.pth
diff --git a/reactpy_jupyter/__init__.py b/reactpy_jupyter/__init__.py
index a36234d..60ea3a6 100644
--- a/reactpy_jupyter/__init__.py
+++ b/reactpy_jupyter/__init__.py
@@ -10,7 +10,7 @@
 from .monkey_patch import execute_patch
 from .widget_component import from_widget
 
-__version__ = "0.9.4"  # DO NOT MODIFY
+__version__ = "0.9.5"  # DO NOT MODIFY
 
 __all__ = (
     "from_widget",
diff --git a/setup.py b/setup.py
index d3538a6..b682d58 100644
--- a/setup.py
+++ b/setup.py
@@ -162,9 +162,14 @@ def build_javascript_first(cmd: Command):
 
 
 def build_with_pth_file(cmd: Command):
+    build_lib = getattr(cmd, "build_lib", None) or getattr(cmd, "dist_dir", None)
+    if build_lib is None:
+        raise ValueError("Cannot find build_lib or dist_dir")
+
     pth_filename = f"{NAME}.pth"
     source_pth_file = ROOT_DIR / pth_filename
-    cmd.copy_file(str(source_pth_file), pth_filename)
+    target_pth_file = Path(build_lib, pth_filename)
+    cmd.copy_file(str(source_pth_file), str(target_pth_file))
 
 
 def add_to_cmd(cls: Command, functions: list[Callable[[Command], None]]) -> Command: