diff --git a/src/components/room/MentionPopover.tsx b/src/components/room/MentionPopover.tsx
index 26dbd69..9472f64 100644
--- a/src/components/room/MentionPopover.tsx
+++ b/src/components/room/MentionPopover.tsx
@@ -7,7 +7,7 @@ import { Skeleton } from '@/components/ui/skeleton';
 import {
   Bot, ChevronRight, Database, SearchX, Sparkles, User, Check,
 } from 'lucide-react';
-import { useCallback, useEffect, useLayoutEffect, useRef, useState } from 'react';
+import { useCallback, useEffect, useLayoutEffect, useMemo, useRef, useState } from 'react';
 
 // ─── Types ───────────────────────────────────────────────────────────────────