diff --git a/python/pyproject.toml b/python/pyproject.toml
index 0e42956..1bb3225 100644
--- a/python/pyproject.toml
+++ b/python/pyproject.toml
@@ -9,7 +9,7 @@
 name = "pandora"
 
 [tool.flit.sdist]
-include = ["_build"]
+include = ["_build", ".."]
 
 [build-system]
 requires = ["flit_core==3.7.1", "grpcio-tools==1.51.1"]