diff --git a/tests/tree/test_tree_messages.py b/tests/tree/test_tree_messages.py
index ff2d8069c..50d0fa3e8 100644
--- a/tests/tree/test_tree_messages.py
+++ b/tests/tree/test_tree_messages.py
@@ -16,7 +16,6 @@ class TreeApp(App[None]):
         yield Tree[None]("Root")
 
     def on_mount(self) -> None:
-        """"""
         self.query_one(Tree[None]).root.add("Child")
         self.query_one(Tree[None]).focus()