diff --git a/lib/reducers/message-reducer.js b/lib/reducers/message-reducer.js
--- a/lib/reducers/message-reducer.js
+++ b/lib/reducers/message-reducer.js
@@ -95,8 +95,8 @@
 } from '../types/socket-types.js';
 import { threadPermissions } from '../types/thread-permission-types.js';
 import type {
-  LegacyRawThreadInfo,
   LegacyRawThreadInfos,
+  RawThreadInfo,
 } from '../types/thread-types.js';
 import {
   type ClientUpdateInfo,
@@ -125,7 +125,7 @@
 
 function isThreadWatched(
   threadID: string,
-  threadInfo: ?LegacyRawThreadInfo,
+  threadInfo: ?RawThreadInfo,
   watchedIDs: $ReadOnlyArray<string>,
 ) {
   return (