diff --git a/bpo-37596-make-set-marshalling.patch b/bpo-37596-make-set-marshalling.patch
index 44bc85f..f484ed3 100644
--- a/bpo-37596-make-set-marshalling.patch
+++ b/bpo-37596-make-set-marshalling.patch
@@ -13,14 +13,13 @@ Subject: [PATCH] bpo-37596: Make `set` and `frozenset` marshalling
 
 --- a/Lib/test/test_marshal.py
 +++ b/Lib/test/test_marshal.py
-@@ -1,5 +1,6 @@
+@@ -1,4 +1,5 @@
  from test import support
- from test.support import os_helper
 +from test.support.script_helper import assert_python_ok
  import array
  import io
  import marshal
-@@ -318,6 +319,31 @@ class BugsTestCase(unittest.TestCase):
+@@ -324,6 +325,31 @@ class BugsTestCase(unittest.TestCase):
          for i in range(len(data)):
              self.assertRaises(EOFError, marshal.loads, data[0: i])