diff --git a/freeradius_utils/auth.py b/freeradius_utils/auth.py
index 1607ba05..5254c22f 100644
--- a/freeradius_utils/auth.py
+++ b/freeradius_utils/auth.py
@@ -40,7 +40,7 @@ from configparser import ConfigParser
 from re2oapi import Re2oAPIClient
 
 import sys
-import os
+from pathlib import Path
 import subprocess
 import logging
 import traceback
@@ -114,10 +114,10 @@ def instantiate(*_):
     """
     logger.info("Instantiation")
 
-    path = (os.path.dirname(os.path.abspath(__file__)))
+    path = Path(__file__).resolve(strict=True).parent
 
     config = ConfigParser()
-    config.read(path+'/config.ini')
+    config.read(path / 'config.ini')
 
     api_hostname = config.get('Re2o', 'hostname')
     api_password = config.get('Re2o', 'password')