diff --git a/compress/compress.py b/compress/compress.py
index b5ed4b1..0cff043 100644
--- a/compress/compress.py
+++ b/compress/compress.py
@@ -40,6 +40,7 @@ def __init__(self, api_key :str , customer_name : str):
         self.api_key        = api_key
         self.customer_name  = customer_name
         self.req            = requests.Session()
+        self.req.base_url   = TNGRM_BASE_URL
         self.client_id      = customer_name + "_client"
     #
     #/**
@@ -52,7 +53,7 @@ def __init__(self, api_key :str , customer_name : str):
     #  }
     # */
     def get_s3_space(self):
-        return self.req.post(TNGRM_BASE_URL + S3_SPACE, 
+        return self.req.post( S3_SPACE, 
             headers={
                 "Content-Type": "application/json",
             },
@@ -69,7 +70,7 @@ def get_s3_space(self):
     # * @returns list of categories of the customer
     # */
     def get_categories(self):
-        return self.req.post(TNGRM_BASE_URL + GET_CATEGORIES, 
+        return self.req.post( GET_CATEGORIES, 
             headers={
                 "Content-Type": "application/json",
             },
diff --git a/compress/tests/test_connection.py b/compress/tests/test_connection.py
index d1dada1..6b02124 100644
--- a/compress/tests/test_connection.py
+++ b/compress/tests/test_connection.py
@@ -24,6 +24,7 @@
 #
 from unittest import mock
 import requests
+from ..constants import *
 from httmock import urlmatch, response, HTTMock, all_requests
 #
 try:
@@ -36,6 +37,7 @@ class TestConnection(unittest.TestCase):
     #
     def setUp(self):
         self._conn = requests.Session()
+        self._conn.base_url = TNGRM_BASE_URL
     #
     @all_requests
     def response_content_success(self, url, request):