diff --git a/README.rst b/README.rst
index 3cf60fb..e9493e3 100644
--- a/README.rst
+++ b/README.rst
@@ -146,6 +146,9 @@ Federation settings:
   The default is ``False``.
 * ``CAS_FEDERATE_PROVIDERS``: A distionnary for the allowed identity providers (see the federate
   section below). The default is ``{}``.
+* ``CAS_FEDERATE_REMEMBER_TIMEOUT``: Time after witch the cookie use for "remember my identity
+  provider" expire. The default is ``604800``, one week. The cookie is called
+  ``_remember_provider``.
 
 
 Tickets validity settings:
diff --git a/cas_server/default_settings.py b/cas_server/default_settings.py
index 2f32134..b7ee5a9 100644
--- a/cas_server/default_settings.py
+++ b/cas_server/default_settings.py
@@ -81,6 +81,7 @@ setting_default('CAS_SQL_PASSWORD_CHECK', 'crypt')  # crypt or plain
 setting_default('CAS_FEDERATE', False)
 # A dict of "provider suffix" -> (provider CAS server url, CAS version, verbose name)
 setting_default('CAS_FEDERATE_PROVIDERS', {})
+setting_default('CAS_FEDERATE_REMEMBER_TIMEOUT', 604800)  # one week
 
 if settings.CAS_FEDERATE:
     settings.CAS_AUTH_CLASS = "cas_server.auth.CASFederateAuth"
diff --git a/cas_server/views.py b/cas_server/views.py
index 7726eb0..0c2dc73 100644
--- a/cas_server/views.py
+++ b/cas_server/views.py
@@ -197,7 +197,7 @@ class FederateAuth(View):
             )
             response = HttpResponseRedirect(url)
             if form.cleaned_data["remember"]:
-                max_age = 7 * 24 * 60 * 60  # one week
+                max_age = settings.CAS_FEDERATE_REMEMBER_TIMEOUT
                 utils.set_cookie(response, "_remember_provider", request.POST["provider"], max_age)
             return response
         else: