diff --git a/lib/hooks/inline-sidebar-text.react.js b/lib/hooks/inline-sidebar-text.react.js
index 6104c3335..d55cd445d 100644
--- a/lib/hooks/inline-sidebar-text.react.js
+++ b/lib/hooks/inline-sidebar-text.react.js
@@ -1,35 +1,41 @@
 // @flow
 
 import * as React from 'react';
 
 import { relativeMemberInfoSelectorForMembersOfThread } from '../selectors/user-selectors';
 import { stringForUser } from '../shared/user-utils';
 import type { ThreadInfo } from '../types/thread-types';
 import { useSelector } from '../utils/redux-utils';
 import { pluralizeAndTrim } from '../utils/text-utils';
 
 function useInlineSidebarText(
   threadInfo: ThreadInfo,
 ): {
   sendersText: string,
   repliesText: string,
 } {
   const repliesCount = threadInfo.repliesCount || 1;
   const repliesText = `${repliesCount} ${
     repliesCount > 1 ? 'replies' : 'reply'
   }`;
 
   const threadMembers = useSelector(
     relativeMemberInfoSelectorForMembersOfThread(threadInfo.id),
   );
   const sendersText = React.useMemo(() => {
     const senders = threadMembers
       .filter(member => member.isSender)
       .map(stringForUser);
     return senders.length > 0 ? `${pluralizeAndTrim(senders, 25)} sent ` : '';
   }, [threadMembers]);
 
-  return { sendersText, repliesText };
+  return React.useMemo(
+    () => ({
+      sendersText,
+      repliesText,
+    }),
+    [sendersText, repliesText],
+  );
 }
 
 export default useInlineSidebarText;