diff --git a/larpe/plugins/site_authentication/ciril_net_rh.py b/larpe/plugins/site_authentication/ciril_net_rh.py
index 417804c..51dea70 100644
--- a/larpe/plugins/site_authentication/ciril_net_rh.py
+++ b/larpe/plugins/site_authentication/ciril_net_rh.py
@@ -28,13 +28,13 @@ class CirilSiteAuthentication(SiteAuthentication):
             success = False
             return_content = redirect(self.host.get_return_url())
 
-        regexp = re.compile(
-            """javascript\:window\.open\('(/net_rh/accueil.php\?.*?)', '_blank'\)""",
-            re.DOTALL | re.IGNORECASE)
-        match = regexp.findall(data)
-        if match:
+        regexp = re.compile("""window.open\('/net_rh/accueil.php\?(.+?)'\,'_blank'""",
+                re.DOTALL | re.IGNORECASE)
+        m = regexp.search(data)
+        if m:
             success = True
-            return_content = redirect(match[0])
+            link = "/net_rh/accueil.php?%s" % m.group(1)
+            return_content = redirect(link)
 
         return success, return_content