diff --git a/lib/SimpleSAML/Auth/LDAP.php b/lib/SimpleSAML/Auth/LDAP.php
index e0c2380cf75f59a33ce6e6642fd820630fc3b5da..d033e06817ccc1ed8fcede986664f209f52bbdb6 100644
--- a/lib/SimpleSAML/Auth/LDAP.php
+++ b/lib/SimpleSAML/Auth/LDAP.php
@@ -588,7 +588,7 @@ class SimpleSAML_Auth_LDAP
     /**
      * Enter description here...
      *
-     * @param string $config
+     * @param array $config
      * @param string $username
      * @param string $password
      * @return array|bool