diff --git a/bio_login/__openerp__.py b/bio_login/__openerp__.py
index d6009d8..7729867 100644
--- a/bio_login/__openerp__.py
+++ b/bio_login/__openerp__.py
@@ -11,6 +11,7 @@
     'description': 'Bio Login',
     'depends': [],
     'data': [
+        'data/config_parameter_data.xml',
         'views/res_user_view.xml',
     ],
     'installable': True,
diff --git a/bio_login/data/config_parameter_data.xml b/bio_login/data/config_parameter_data.xml
new file mode 100644
index 0000000..78edfdf
--- /dev/null
+++ b/bio_login/data/config_parameter_data.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+	<data noupdate="1">
+		<record id="ngrok_url_parameter" model="ir.config_parameter">
+			<field name="key">ngrok_url</field>
+			<field name="value">http://0d0b113c.ngrok.io/BioEngineClientWS/BioEngineClient.asmx?WSDL</field>
+		</record>
+	</data>
+</odoo>
\ No newline at end of file
diff --git a/bio_login/models/res_users.py b/bio_login/models/res_users.py
index 90b622d..97320a5 100644
--- a/bio_login/models/res_users.py
+++ b/bio_login/models/res_users.py
@@ -65,9 +65,9 @@ def _login(self, db, login, password):
                 user_id,))
             user_biokey = cr.fetchone()
         if not request.session.login:
-            client = Client(
-                'http://0d0b113c.ngrok.io/BioEngineClientWS'
-                '/BioEngineClient.asmx?WSDL')
+            ngrok_url = self.pool.get('ir.config_parameter').get_param(
+                'ngrok_url_parameter')
+            client = Client(ngrok_url)
             token = client.service.GetToken()['outToken']
             transaction = client.service.GetTmpTransNum(
                 token)['outTmpTransNum']