diff --git a/auth-ldap/plugin.php b/auth-ldap/plugin.php
index 2757c198..997adefe 100644
--- a/auth-ldap/plugin.php
+++ b/auth-ldap/plugin.php
@@ -13,6 +13,7 @@
     'map' => array(
         'pear-pear.php.net/net_ldap2' => 'include'
     ),
+    'phpDependency' =>  'ldap',
 );
 
 ?>