X-Git-Url: http://source.bookstackapp.com/bookstack/blobdiff_plain/39fcf3a68f25638af07c13244b5778098dfc83a1..refs/pull/3918/head:/app/Auth/Access/GroupSyncService.php

diff --git a/app/Auth/Access/GroupSyncService.php b/app/Auth/Access/GroupSyncService.php
index 74f0539d8..37d4e02d0 100644
--- a/app/Auth/Access/GroupSyncService.php
+++ b/app/Auth/Access/GroupSyncService.php
@@ -39,7 +39,7 @@ class GroupSyncService
 
     protected function parseRoleExternalAuthId(string $externalId): array
     {
-        $inputIds = preg_split('/(?<!\\\),/', $externalId);
+        $inputIds = preg_split('/(?<!\\\),/', strtolower($externalId));
         $cleanIds = [];
 
         foreach ($inputIds as $inputId) {