diff --git a/MANIFEST.in b/MANIFEST.in
index 17dfbc02e71..254ff70e05c 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -9,7 +9,6 @@ recursive-exclude cupy *.cpp
 recursive-exclude cupy_backends *.cpp
 
 # Installers
-include cupy_setup_build.py
 recursive-include install *.py
 recursive-include tests *.py