From e21b48cd3a8233ae4e8dc6474636cf2524659bf2 Mon Sep 17 00:00:00 2001
From: Nick Mills-Barrett <nick@beeper.com>
Date: Fri, 8 Mar 2024 18:52:18 +0000
Subject: [PATCH] Add missing await

---
 synapse/rest/client/sync.py | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/synapse/rest/client/sync.py b/synapse/rest/client/sync.py
index 555c3ef8a6..ce190cfc5a 100644
--- a/synapse/rest/client/sync.py
+++ b/synapse/rest/client/sync.py
@@ -549,10 +549,12 @@ async def encode_room(
 
             if room.preview:
                 if "event" in room.preview:
-                    room.preview["event"] = self._event_serializer.serialize_events(
-                        [room.preview["event"]],
-                        time_now,
-                        config=serialize_options,
+                    room.preview["event"] = (
+                        await self._event_serializer.serialize_events(
+                            [room.preview["event"]],
+                            time_now,
+                            config=serialize_options,
+                        )
                     )[0]
                 result["com.beeper.inbox.preview"] = room.preview