diff --git a/utils.py b/utils.py
index 610974247..66dc5fa45 100644
--- a/utils.py
+++ b/utils.py
@@ -1327,7 +1327,7 @@ def get_user_paths() -> []:
     e.g. /users/nickname, /channel/nickname
     """
     return ('/users/', '/profile/', '/accounts/', '/channel/', '/u/',
-            '/c/', '/video-channels/', '/author/')
+            '/c/', '/video-channels/', '/author/', '/activitypub/')
 
 
 def get_group_paths() -> []:
@@ -2263,7 +2263,7 @@ def _get_reserved_words() -> str:
             'searchemoji', 'catalog', 'conversationId',
             'mention', 'http', 'https', 'ipfs', 'ipns',
             'ontologies', 'data', 'postedit', 'moved',
-            'inactive')
+            'inactive', 'activitypub')
 
 
 def get_nickname_validation_pattern() -> str: