diff --git a/InvenTree/plugin/test_api.py b/InvenTree/plugin/test_api.py
index 445c371f54..f232773ee1 100644
--- a/InvenTree/plugin/test_api.py
+++ b/InvenTree/plugin/test_api.py
@@ -143,7 +143,7 @@ class PluginDetailAPITest(InvenTreeAPITestCase):
         plg = fixtures.first()
         mixin_dict = plg.mixins()
         self.assertIn('base', mixin_dict)
-        self.assertDictContainsSubset({'base' :{'key' :'base', 'human_name': 'base'}}, mixin_dict)
+        self.assertDictContainsSubset({'base': {'key': 'base', 'human_name': 'base'}}, mixin_dict)
 
         # check reload on save
         with self.assertWarns(Warning) as cm: