diff --git a/tests/test_agent.py b/tests/test_agent.py
index 7a289d8490c..f2bbd201c7e 100644
--- a/tests/test_agent.py
+++ b/tests/test_agent.py
@@ -380,4 +380,4 @@ def get_unique_identifier(self):
 
     attributes = agentset.groupby("even", result_type="agentset").apply("get", "even")
     for group_name, group in attributes.items():
-        assert all([group_name == entry for entry in group])
+        assert all(group_name == entry for entry in group)