diff --git a/index_for_search.py b/index_for_search.py
index 08e19d0..ee3d559 100644
--- a/index_for_search.py
+++ b/index_for_search.py
@@ -4,6 +4,7 @@ import sqlite3
 
 SEARCH_DB_NAME = 'search.db'
 ACCESS_LOG_DB_NAME = 'access_log.db'
+FOLDER_CONFIG = 'folder_permission_config.json'
 
 # Connect to the search database.
 search_db = sqlite3.connect(SEARCH_DB_NAME, check_same_thread=False)
@@ -69,7 +70,7 @@ def updatefileindex():
     cursor = search_db.cursor()
 
     # Load folder configuration from JSON file.
-    with open("folder_config.json", "r", encoding="utf-8") as f:
+    with open(FOLDER_CONFIG, "r", encoding="utf-8") as f:
         config_data = json.load(f)
 
     # Process each configured base folder.