diff --git a/bot/notification.py b/bot/notification.py
index 71ec814..e0ae020 100644
--- a/bot/notification.py
+++ b/bot/notification.py
@@ -19,6 +19,7 @@ def process_notification(client, notification):
 
     if not (instance in WHITELISTED_INSTANCES or instance == 'local'):
         print(f'⚠️ Blocked notification from untrusted instance: {instance}')
+        return
 
     # Copy visibility of the post that was received when replying (so if people
     # don't want to dump a bunch of notes on home they don't have to)