diff --git a/setup.py b/setup.py
index acf20aa..a5dacb4 100755
--- a/setup.py
+++ b/setup.py
@@ -58,6 +58,7 @@ setup(
     url='https://lab.louiz.org/poezio/slixmpp-omemo',
     license='GPLv3',
     platforms=['any'],
+    package_data={'slixmpp_omemo': ['py.typed']},
     packages=['slixmpp_omemo'],
     install_requires=[
         'slixmpp>=1.8.0',
diff --git a/slixmpp_omemo/py.typed b/slixmpp_omemo/py.typed
new file mode 100644
index 0000000..e69de29