diff --git a/.flake8 b/.flake8
index e1c9d1486..34b3862a0 100644
--- a/.flake8
+++ b/.flake8
@@ -3,7 +3,7 @@
 max-line-length = 80
 per-file-ignores =
     # E501: line too long
-    tests/test_git_superproject.py: E501 IMR241,
+    tests/test_git_superproject.py: E501,
     # IMR241: When using the from syntax, only submodules are imported, not module elements.
     # NB: Do not add any more here.
     command.py: IMR241,
diff --git a/tests/test_git_superproject.py b/tests/test_git_superproject.py
index 6d7140aa8..e7f208d9c 100644
--- a/tests/test_git_superproject.py
+++ b/tests/test_git_superproject.py
@@ -22,7 +22,7 @@ import unittest
 from unittest import mock
 
 import pytest
-from test_manifest_xml import sort_attributes
+import test_manifest_xml
 
 import git_superproject
 import git_trace2_event_log
@@ -255,7 +255,7 @@ class SuperprojectTestCase(unittest.TestCase):
         with open(manifest_path) as fp:
             manifest_xml_data = fp.read()
         self.assertEqual(
-            sort_attributes(manifest_xml_data),
+            test_manifest_xml.sort_attributes(manifest_xml_data),
             '<?xml version="1.0" ?><manifest>'
             '<remote fetch="http://localhost" name="default-remote"/>'
             '<default remote="default-remote" revision="refs/heads/main"/>'
@@ -290,7 +290,7 @@ class SuperprojectTestCase(unittest.TestCase):
                     with open(update_result.manifest_path) as fp:
                         manifest_xml_data = fp.read()
                     self.assertEqual(
-                        sort_attributes(manifest_xml_data),
+                        test_manifest_xml.sort_attributes(manifest_xml_data),
                         '<?xml version="1.0" ?><manifest>'
                         '<remote fetch="http://localhost" name="default-remote"/>'
                         '<default remote="default-remote" revision="refs/heads/main"/>'
@@ -317,7 +317,7 @@ class SuperprojectTestCase(unittest.TestCase):
         self.maxDiff = None
         self.assertIsNone(manifest.superproject)
         self.assertEqual(
-            sort_attributes(manifest.ToXml().toxml()),
+            test_manifest_xml.sort_attributes(manifest.ToXml().toxml()),
             '<?xml version="1.0" ?><manifest>'
             '<remote fetch="http://localhost" name="default-remote"/>'
             '<default remote="default-remote" revision="refs/heads/main"/>'
@@ -379,7 +379,7 @@ class SuperprojectTestCase(unittest.TestCase):
                     # Verify platform/vendor/x's project revision hasn't
                     # changed.
                     self.assertEqual(
-                        sort_attributes(manifest_xml_data),
+                        test_manifest_xml.sort_attributes(manifest_xml_data),
                         '<?xml version="1.0" ?><manifest>'
                         '<remote fetch="http://localhost" name="default-remote"/>'
                         '<remote fetch="http://localhost2" name="goog"/>'
@@ -444,7 +444,7 @@ class SuperprojectTestCase(unittest.TestCase):
                     # Verify platform/vendor/x's project revision hasn't
                     # changed.
                     self.assertEqual(
-                        sort_attributes(manifest_xml_data),
+                        test_manifest_xml.sort_attributes(manifest_xml_data),
                         '<?xml version="1.0" ?><manifest>'
                         '<remote fetch="http://localhost" name="default-remote"/>'
                         '<default remote="default-remote" revision="refs/heads/main"/>'