diff --git a/app/services/search/retrieval_service.py b/app/services/search/retrieval_service.py
index 13b7f69..ac8ae9d 100644
--- a/app/services/search/retrieval_service.py
+++ b/app/services/search/retrieval_service.py
@@ -48,14 +48,14 @@ async def search_text(
             WITH candidates AS (
                 -- title trigram (idx_documents_title_trgm)
                 SELECT id FROM documents
-                WHERE deleted_at IS NULL AND title %% :q
+                WHERE deleted_at IS NULL AND title % :q
                 UNION
                 -- ai_summary trigram (idx_documents_ai_summary_trgm 부분 인덱스 매치)
                 SELECT id FROM documents
                 WHERE deleted_at IS NULL
                   AND ai_summary IS NOT NULL
                   AND length(ai_summary) > 0
-                  AND ai_summary %% :q
+                  AND ai_summary % :q
                 UNION
                 -- FTS 통합 인덱스 (idx_documents_fts_full)
                 SELECT id FROM documents