diff --git a/lib/addressbook.php b/lib/addressbook.php
index 27eab42b..b4e43eff 100644
--- a/lib/addressbook.php
+++ b/lib/addressbook.php
@@ -483,6 +483,10 @@ class Addressbook extends AbstractPIMCollection {
 		return $events;
 	}
 
+	/**
+	 * Returns the searchProvider for a specific backend.
+	 * @param \OCA\Contacts\Addressbook $addressbook
+	 */
 	public function getSearchProvider($addressbook){
 		return $this->backend->getSearchProvider($addressbook);
 	}