diff --git a/MANIFEST.in b/MANIFEST.in
new file mode 100644
index 0000000000000000000000000000000000000000..c3b869c355365f4694ef8014d9e9a6e3ad372f64
--- /dev/null
+++ b/MANIFEST.in
@@ -0,0 +1 @@
+include test_*.py