diff --git a/module/VuFind/src/VuFind/Auth/Database.php b/module/VuFind/src/VuFind/Auth/Database.php
index f0fa7c1c1aced14b5345aaa27db275fe3d5ce824..b9c6942e91b2a5a3462f140cf067a4722a80a891 100644
--- a/module/VuFind/src/VuFind/Auth/Database.php
+++ b/module/VuFind/src/VuFind/Auth/Database.php
@@ -43,7 +43,18 @@ use VuFind\Exception\Auth as AuthException, Zend\Crypt\Password\Bcrypt;
  */
 class Database extends AbstractBase
 {
+    /**
+     * Username
+     *
+     * @var string
+     */
     protected $username;
+
+    /**
+     * Password
+     *
+     * @var string
+     */
     protected $password;
 
     /**
diff --git a/module/VuFind/src/VuFind/Auth/ILS.php b/module/VuFind/src/VuFind/Auth/ILS.php
index fdbfe22cd773922bb3f208a20c03a9969ff80eec..b05ea77d42a626f61a4427a3591596ffe32214d6 100644
--- a/module/VuFind/src/VuFind/Auth/ILS.php
+++ b/module/VuFind/src/VuFind/Auth/ILS.php
@@ -41,6 +41,11 @@ use VuFind\Exception\Auth as AuthException;
  */
 class ILS extends AbstractBase
 {
+    /**
+     * Catalog connection
+     *
+     * @var \VuFind\ILS\Connection
+     */
     protected $catalog = null;
 
     /**
diff --git a/module/VuFind/src/VuFind/Auth/LDAP.php b/module/VuFind/src/VuFind/Auth/LDAP.php
index c907870bd3ea64f9a8895b1146086670798edc52..4730d240d4f92eb5e8c5c982fbad9cfcabdb9f48 100644
--- a/module/VuFind/src/VuFind/Auth/LDAP.php
+++ b/module/VuFind/src/VuFind/Auth/LDAP.php
@@ -41,7 +41,18 @@ use VuFind\Exception\Auth as AuthException;
  */
 class LDAP extends AbstractBase
 {
+    /**
+     * Username
+     *
+     * @var string
+     */
     protected $username;
+
+    /**
+     * Password
+     *
+     * @var string
+     */
     protected $password;
 
     /**