diff --git a/lib/connector/sabre/principal.php b/lib/connector/sabre/principal.php
index 04be410ac85ea44875ea9ad87226d96853a95d4d..16c88b96ea6fc4dbcf8b9f941eee48c38836c52e 100644
--- a/lib/connector/sabre/principal.php
+++ b/lib/connector/sabre/principal.php
@@ -121,6 +121,6 @@ class OC_Connector_Sabre_Principal implements Sabre_DAVACL_IPrincipalBackend {
 	}
 
 	function searchPrincipals($prefixPath, array $searchProperties) {
-		return 0;
+		return array();
 	}
 }