diff --git a/plugins/LegacyProfileReader/tests/TestLegacyProfileReader.py b/plugins/LegacyProfileReader/tests/TestLegacyProfileReader.py
index 05f49017a3..cd0f681828 100644
--- a/plugins/LegacyProfileReader/tests/TestLegacyProfileReader.py
+++ b/plugins/LegacyProfileReader/tests/TestLegacyProfileReader.py
@@ -5,7 +5,6 @@ import configparser # An input for some functions we're testing.
 import os.path # To find the integration test .ini files.
 import pytest # To register tests with.
 import unittest.mock # To mock the application, plug-in and container registry out.
-import os.path
 import sys
 sys.path.append(os.path.join(os.path.dirname(os.path.abspath(__file__)), ".."))
 
@@ -16,6 +15,7 @@ import UM.Settings.InstanceContainer # To intercept the serialised data from the
 
 import LegacyProfileReader as LegacyProfileReaderModule # To get the directory of the module.
 
+
 @pytest.fixture
 def legacy_profile_reader():
     try:
@@ -162,7 +162,7 @@ def test_read(legacy_profile_reader, file_name):
     plugin_registry.getPluginPath = unittest.mock.MagicMock(return_value = os.path.dirname(LegacyProfileReaderModule.__file__))
 
     # Mock out the resulting InstanceContainer so that we can intercept the data before it's passed through the version upgrader.
-    def deserialize(self, data): # Intercepts the serialised data that we'd perform the version upgrade from when deserializing.
+    def deserialize(self, data, filename): # Intercepts the serialised data that we'd perform the version upgrade from when deserializing.
         global intercepted_data
         intercepted_data = data
 
@@ -192,4 +192,4 @@ def test_read(legacy_profile_reader, file_name):
     assert parser["metadata"]["type"] == "quality_changes"
     assert parser["metadata"]["quality_type"] == "normal"
     assert parser["metadata"]["position"] == "0"
-    assert parser["metadata"]["setting_version"] == "5" # Yes, before we upgraded.
\ No newline at end of file
+    assert parser["metadata"]["setting_version"] == "5" # Yes, before we upgraded.