diff --git a/webapp_profile.py b/webapp_profile.py
index 31b78d759..32a8076cb 100644
--- a/webapp_profile.py
+++ b/webapp_profile.py
@@ -135,6 +135,9 @@ def _valid_profile_preview_post(post_json_object: {},
         post_json_object = new_post_json_object
     if not post_json_object.get('actor'):
         return False, None
+    if isinstance(post_json_object['actor'], dict):
+        if post_json_object['actor'].get('id'):
+            post_json_object['actor'] = post_json_object['actor']['id']
     if not is_announced_feed_item:
         if has_object_dict(post_json_object):
             if post_json_object['actor'] != person_url and \