diff --git a/dataretrieval/py.typed b/dataretrieval/py.typed
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/dataretrieval/py.typed
@@ -0,0 +1 @@
+
diff --git a/setup.py b/setup.py
index 6068493..3630daf 100644
--- a/setup.py
+++ b/setup.py
@@ -1,3 +1,5 @@
 from setuptools import setup
 
-setup()
+setup(
+    package_data={"dataretrieval": ["py.typed"]}
+)
\ No newline at end of file