diff --git a/webservice/serve_overview.py b/webservice/serve_overview.py
index ca7680905558959c25895a18303de4abc5b6f200..5df38aff8da9af13fe1d392c34c7a775a5076ae5 100644
--- a/webservice/serve_overview.py
+++ b/webservice/serve_overview.py
@@ -5,6 +5,7 @@ import sqlite3
 from collections import OrderedDict
 from datetime import datetime, timezone
 from http.server import BaseHTTPRequestHandler, HTTPServer
+from pathlib import Path
 from subprocess import check_output
 from typing import Optional
 
@@ -345,7 +346,7 @@ class RequestHandler(BaseHTTPRequestHandler):
 
 def run(config_file = Optional[str]):
     if config_file is not None:
-        config.configure(includes_for_dynaconf=[config_file])
+        config.configure(includes_for_dynaconf=[Path(config_file).absolute()])
 
     with open(config["web-service"]["cal-config"], "r") as cf:
         global cal_config
diff --git a/webservice/update_mdc.py b/webservice/update_mdc.py
index b9240a8404d1ade46f798f1d02945394e8b59471..fd68354adaeb3ed3565b032709acf6c3ccb119ed 100644
--- a/webservice/update_mdc.py
+++ b/webservice/update_mdc.py
@@ -1,5 +1,5 @@
 import argparse
-import os.path as osp
+from pathlib import Path
 
 from metadata_client.metadata_client import MetadataClient
 
@@ -23,7 +23,7 @@ flg = args['flg']
 msg = args['msg']
 
 if conf_file is not None:
-    config.configure(includes_for_dynaconf=[conf_file])
+    config.configure(includes_for_dynaconf=[Path(conf_file).absolute()])
 
 mdconf = config['metadata-client']
 client_conn = MetadataClient(client_id=mdconf['user-id'],
diff --git a/webservice/webservice.py b/webservice/webservice.py
index 19baea828600b2a06c87d1e985da0224258e148b..bf61dec8ca490077fde84cf6fb9953d3e36c1230 100644
--- a/webservice/webservice.py
+++ b/webservice/webservice.py
@@ -1139,7 +1139,7 @@ def main(argv: Optional[List[str]] = None):
     mode = args.mode
 
     if config_file is not None:
-        config.configure(includes_for_dynaconf=['config_file'])
+        config.configure(includes_for_dynaconf=[Path(config_file).absolute()])
 
     fmt = '%(asctime)s - %(name)s - %(levelname)s - [%(filename)s:%(lineno)d] %(message)s'
     logging.basicConfig(