diff --git a/tests/test_registry.py b/tests/test_registry.py
index 6cebc2fb..acf5b515 100644
--- a/tests/test_registry.py
+++ b/tests/test_registry.py
@@ -33,4 +33,4 @@ class plugin2(Plugin):
 
     # Test registration
     names = [plugin.__class__.__name__ for plugin in r.get_plugins()]
-    assert(names == ['plugin1', 'plugin2'])
+    assert (names == ['plugin1', 'plugin2'])