diff --git a/synapse/handlers/presence.py b/synapse/handlers/presence.py
index e9a637f6e4e2..97a06a77fd3e 100644
--- a/synapse/handlers/presence.py
+++ b/synapse/handlers/presence.py
@@ -1098,7 +1098,7 @@ async def bump_presence_active_time(
         prev_state = await self.current_state_for_user(user_id)
         new_fields: Dict[str, Any] = {
             "last_active_ts": now,
-            "presence": _combine_device_states(devices.values()),
+            "state": _combine_device_states(devices.values()),
         }
 
         await self._update_states([prev_state.copy_and_replace(**new_fields)])