diff --git a/rtree/py.typed b/rtree/py.typed
new file mode 100644
index 00000000..e69de29b
diff --git a/setup.cfg b/setup.cfg
index f3edbd7d..bf2952cc 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -36,7 +36,7 @@ include_package_date = True
 packages = rtree
 
 [options.package_data]
-rtree = lib
+rtree = lib, py.typed
 
 [flake8]
 max-line-length = 88