diff --git a/apps/user_ldap/lib/ILDAPWrapper.php b/apps/user_ldap/lib/ILDAPWrapper.php
index 4034d0baea..71dd60c372 100644
--- a/apps/user_ldap/lib/ILDAPWrapper.php
+++ b/apps/user_ldap/lib/ILDAPWrapper.php
@@ -82,14 +82,14 @@ interface ILDAPWrapper {
 	/**
 	 * Return the LDAP error number of the last LDAP command
 	 * @param resource $link LDAP link resource
-	 * @return string error message as string
+	 * @return int error code
 	 */
 	public function errno($link);
 
 	/**
 	 * Return the LDAP error message of the last LDAP command
 	 * @param resource $link LDAP link resource
-	 * @return int error code as integer
+	 * @return string error message
 	 */
 	public function error($link);
 
diff --git a/apps/user_ldap/lib/LDAP.php b/apps/user_ldap/lib/LDAP.php
index ebee078413..eafd8eacd0 100644
--- a/apps/user_ldap/lib/LDAP.php
+++ b/apps/user_ldap/lib/LDAP.php
@@ -100,7 +100,7 @@ class LDAP implements ILDAPWrapper {
 
 	/**
 	 * @param LDAP $link
-	 * @return mixed|string
+	 * @return integer
 	 */
 	public function errno($link) {
 		return $this->invokeLDAPMethod('errno', $link);
@@ -108,7 +108,7 @@ class LDAP implements ILDAPWrapper {
 
 	/**
 	 * @param LDAP $link
-	 * @return int|mixed
+	 * @return string
 	 */
 	public function error($link) {
 		return $this->invokeLDAPMethod('error', $link);