diff --git a/MANIFEST.in b/MANIFEST.in
index b7b5b6c..64fa090 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,5 +1,6 @@
 include LICENSE
 include README.md
+include frontmatter/py.typed
 
 recursive-include tests *
 
diff --git a/setup.py b/setup.py
index 11433ba..d4de7e4 100644
--- a/setup.py
+++ b/setup.py
@@ -24,6 +24,7 @@
     author_email="eyeseast@gmail.com",
     url="https://github.com/eyeseast/python-frontmatter",
     packages=["frontmatter"],
+    package_data={"frontmatter": ["py.typed"]},
     include_package_data=True,
     install_requires=["PyYAML"],
     extras_require={