From 87d4c398e35f430f104aef1bfb3cfd8a32f51882 Mon Sep 17 00:00:00 2001
From: Noel De Martin <noel@moodle.com>
Date: Wed, 6 Sep 2023 09:05:10 +0200
Subject: [PATCH] MDL-79277 tool_mobile: Fix warning

---
 admin/tool/mobile/classes/api.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/admin/tool/mobile/classes/api.php b/admin/tool/mobile/classes/api.php
index bb9686e8b72..0eeaa3e3316 100644
--- a/admin/tool/mobile/classes/api.php
+++ b/admin/tool/mobile/classes/api.php
@@ -125,7 +125,7 @@ class api {
                         foreach ($langs as $langid => $langname) {
                             foreach ($addoninfo['lang'] as $stringinfo) {
                                 $lang[$langid][$stringinfo[0]] =
-                                    $stringmanager->get_string($stringinfo[0], $stringinfo[1], null, $langid);
+                                    $stringmanager->get_string($stringinfo[0], $stringinfo[1] ?? null, null, $langid);
                             }
                         }
                     }