diff --git a/synapse/storage/push_rule.py b/synapse/storage/push_rule.py
index c312ee39a2..789766d5be 100644
--- a/synapse/storage/push_rule.py
+++ b/synapse/storage/push_rule.py
@@ -151,12 +151,14 @@ class PushRuleStore(SQLBaseStore):
         # generating them for bot / AS users etc, we only do so for people who've
         # sent a read receipt into the room.
 
-        local_users_in_room = yield self._get_joined_users_from_context(
+        users_in_room = yield self._get_joined_users_from_context(
             room_id, state_group, current_state_ids,
             on_invalidate=cache_context.invalidate,
             event=event,
         )
 
+        local_users_in_room = set(u for u in users_in_room if self.hs.is_mine_id(u))
+
         # users in the room who have pushers need to get push rules run because
         # that's how their pushers work
         if_users_with_pushers = yield self.get_if_users_have_pushers(