diff --git a/scripts/mk_util.py b/scripts/mk_util.py
index c1f899f6d..75e2af52d 100644
--- a/scripts/mk_util.py
+++ b/scripts/mk_util.py
@@ -355,7 +355,6 @@ def check_ml():
     os.remove('hello.cmi')
     os.remove('hello.cmo')
     os.remove('hello.cmx')
-    os.remove('hello.obj')
     os.remove('a.out')
     find_ml_lib()