diff --git a/esi.module b/esi.module
index 7d381cc..f103164 100755
--- a/esi.module
+++ b/esi.module
@@ -97,7 +97,7 @@ function esi_user($op, &$edit, &$account, $category = NULL) {
   if ($op == 'login') {
     require_once(dirname(__FILE__) . '/esi.inc');
     $hash = _esi__get_roles_hash(array_keys($account->roles));
-    $lifespan = min(variable_get('esi_seed_key_rotation_interval', ESI__DEFAULT_SEED_KEY_ROTATION_INTERVAL), ini_get('session.cookie_lifetime'));
+    $lifespan = max(variable_get('esi_seed_key_rotation_interval', ESI__DEFAULT_SEED_KEY_ROTATION_INTERVAL), ini_get('session.cookie_lifetime'));
     $cookie += array(
       'value' => $hash,
       'expire' => time() + $lifespan,