diff --git a/app/activitypub/routes.py b/app/activitypub/routes.py
index 9c926b14..ed894879 100644
--- a/app/activitypub/routes.py
+++ b/app/activitypub/routes.py
@@ -1629,6 +1629,8 @@ def process_upvote(user, store_ap_json, request_json, announced=True):
 def process_downvote(user, store_ap_json, request_json, announced=True):
     id = request_json['id']
     ap_id = request_json['object'] if not announced else request_json['object']['object']
+    if isinstance(ap_id, dict) and 'id' in ap_id:
+        ap_id = ap_id['id']
     liked = find_liked_object(ap_id)
     if liked is None:
         log_incoming_ap(id, APLOG_DISLIKE, APLOG_FAILURE, request_json if store_ap_json else None, 'Unfound object ' + ap_id)