diff --git a/library/Class/WebService/SIGB/AbstractRESTService.php b/library/Class/WebService/SIGB/AbstractRESTService.php
index 6948568593c1d75e2622badb391094b207cc4e26..29537fd94042e962912631d06e7ea3cdeb1d71d1 100644
--- a/library/Class/WebService/SIGB/AbstractRESTService.php
+++ b/library/Class/WebService/SIGB/AbstractRESTService.php
@@ -37,7 +37,7 @@ abstract class Class_WebService_SIGB_AbstractRESTService extends Class_WebServic
    * @return Class_WebService_SIGB_AbstractRESTService
    */
   public function setServerRoot($server_root) {
-    $this->_server_root =  $server_root;
+    $this->_server_root = 'https://' . str_replace('https://', '', $server_root);
     return $this;
   }