diff --git a/examples/c_json.py b/examples/c_json.py
index 7eafdc58..cab05e42 100644
--- a/examples/c_json.py
+++ b/examples/c_json.py
@@ -116,6 +116,8 @@ def to_dict(node):
     for child_attr in child_attrs_of(klass):
         if child_attr not in result:
             result[child_attr] = None
+            if result['_nodetype'] == "Case" :
+                result[child_attr] = []
 
     return result