diff --git a/app.py b/app.py
index fe00cb1..fc27d09 100644
--- a/app.py
+++ b/app.py
@@ -79,7 +79,7 @@ def post_a_post(post_key):
         'texto': 'next post is this',
     }, overwrite_mode='update') 
  
-    db.collection('post_parents').insert({
+    metadata = db.collection('post_parents').insert({
         '_key':     post_key,
         '_from':    f'posts/post_key',
         '_to':      f'posts/{metadata["_key"]}'