diff --git a/assignment.py b/assignment.py
index 271f7cd8d..3aa1208c4 100644
--- a/assignment.py
+++ b/assignment.py
@@ -6,7 +6,7 @@
 
 open("foo")
 
-def foo(foo=None):
+def foo(foo=None,bar={}):
   if foo is None:
     foo = []
   return [*foo]