diff --git a/py.typed b/py.typed
new file mode 100644
index 000000000..e69de29bb
diff --git a/setup.py b/setup.py
index 75dce736f..76cf218a1 100644
--- a/setup.py
+++ b/setup.py
@@ -59,4 +59,5 @@ def is_release():
     version=version,
     description=description,
     long_description=long_description,
+    package_data={'': ['py.typed']},
 )