diff --git a/app/admin/validate/v1/AttachmentCategoryValidate.php b/app/admin/validate/v1/AttachmentCategoryValidate.php
index 64e4d200..dbfa1139 100644
--- a/app/admin/validate/v1/AttachmentCategoryValidate.php
+++ b/app/admin/validate/v1/AttachmentCategoryValidate.php
@@ -57,7 +57,7 @@ class AttachmentCategoryValidate extends Validate
                 "WITH RECURSIVE attachment_tree_by AS (
                     SELECT a.id, a.pid FROM $table_name a WHERE a.id = {$data['id']}
                     UNION ALL
-                    SELECT k.id, k.pid FROM $table_name k INNER JOIN attachement_tree_by t ON t.id = k.pid
+                    SELECT k.id, k.pid FROM $table_name k INNER JOIN attachment_tree_by t ON t.id = k.pid
                 )
                 SELECT id FROM attachment_tree_by WHERE id <> {$data['id']};"
             )