diff --git a/MANIFEST.in b/MANIFEST.in
index 01d6bb03..97b70a83 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,3 +1,4 @@
 include ffi/*
 include curl_cffi/_wrapper.*
 include curl_cffi/include/curl/*
+include scripts/build.py