diff --git a/user/externallib.php b/user/externallib.php
index b203c29c13c..f47ab060e88 100644
--- a/user/externallib.php
+++ b/user/externallib.php
@@ -133,6 +133,7 @@ class core_user_external extends external_api {
         global $CFG, $DB;
         require_once($CFG->dirroot."/lib/weblib.php");
         require_once($CFG->dirroot."/user/lib.php");
+        require_once($CFG->dirroot."/user/editlib.php");
         require_once($CFG->dirroot."/user/profile/lib.php"); // Required for customfields related function.
 
         // Ensure the current user is allowed to run this function.