diff --git a/u5/kindergarten_garden.py b/u5/kindergarten_garden.py
index ebc24b1..be957ee 100644
--- a/u5/kindergarten_garden.py
+++ b/u5/kindergarten_garden.py
@@ -27,7 +27,7 @@ class Garden:
         "V":"Fialky",
     }
 
-    def __init__(self, diagram, students=None):
+    def __init__(self, diagram, students=DEFAULT_STUDENTS):
     self.students = sorted(students)
     self.rows = diagram.split("\n")