diff --git a/src/tools/sync_filename.py b/src/tools/sync_filename.py
index 9f63aa0..a47edec 100644
--- a/src/tools/sync_filename.py
+++ b/src/tools/sync_filename.py
@@ -108,7 +108,7 @@ def sync_whisper_to_stash(whisper_db_path, stash_db_path, dir_prefix, studio_fil
         # 在whisper数据中查找匹配项
         matched = False
         for whisper_code, whisper_row in idx_whisper.items():
-            if whisper_code and basename and str(whisper_code) in basename:
+            if whisper_code and basename and str(whisper_code).lower() in basename.lower():
                 # 找到匹配项，更新stash数据库
                 matched = True
                 matched_cnt += 1