diff --git a/packages/backend/src/core/SearchService.ts b/packages/backend/src/core/SearchService.ts
index 147239f514..9cab9bf89e 100644
--- a/packages/backend/src/core/SearchService.ts
+++ b/packages/backend/src/core/SearchService.ts
@@ -174,7 +174,6 @@ export class SearchService {
 			if (opts.channelId) filter.qs.push({ op: '=', k: 'channelId', v: opts.channelId });
 			if (opts.host) {
 				if (opts.host === '.') {
-					// TODO: Meilisearchが2023/05/07現在値がNULLかどうかのクエリが書けない
 					filter.qs.push({ op: 'is null', k: 'userHost' });
 				} else {
 					filter.qs.push({ op: '=', k: 'userHost', v: opts.host });