diff --git a/build/api/module/casController.php b/build/api/module/casController.php
index cb25ec9..a7a42d8 100644
--- a/build/api/module/casController.php
+++ b/build/api/module/casController.php
@@ -100,7 +100,7 @@ class casController{
 		/* (2) Check ticket (validate)
 		---------------------------------------------------------*/
 		/* (1) Build useful variables */
-		$service      = ($_SERVER['SERVER_NAME'] == 'ptut.com' ) ? 'http' : 'https';
+		$service      = ($_SERVER['SERVER_PORT'] == 80) ? 'http' : 'https';
 		$service     .= '://'.$_SERVER['HTTP_HOST'].'/api/v/1.0/cas/'.$popup_mode;
 		$ticket       = urlencode($_GET['ticket']);
 		$validate_url = "https://sso.univ-pau.fr/cas/serviceValidate?ticket=$ticket&service=$service";
@@ -259,4 +259,4 @@ class casController{
 
 	}
 
-}
\ No newline at end of file
+}