diff --git a/pydantic/py.typed b/pydantic/py.typed
new file mode 100644
index 0000000..e69de29
diff --git a/setup.py b/setup.py
index 12247aa..df34803 100644
--- a/setup.py
+++ b/setup.py
@@ -68,8 +68,9 @@ setup(
     url='https://github.com/samuelcolvin/pydantic',
     license='MIT',
     packages=['pydantic'],
+    package_data={'pydantic': ['py.typed']},
     python_requires='>=3.6',
-    zip_safe=True,
+    zip_safe=False,  # https://mypy.readthedocs.io/en/latest/installed_packages.html
     install_requires=[
         'dataclasses>=0.6;python_version<"3.7"'
     ],