diff --git a/src/forums/New.jsx b/src/forums/New.jsx
index 57aabdbae..62960204e 100644
--- a/src/forums/New.jsx
+++ b/src/forums/New.jsx
@@ -63,7 +63,7 @@ function New(props, ref) {
             ...result.data,
             forum_id,
             tag_id: result.data.tag_id,
-            children_forum_id:result.data.forum_section_id,
+            children_forum_id: result.data.children_forum_section && result.data.children_forum_section.children_forum_id ? result.data.forum_section_id : undefined,
             is_original: memo_original
           });
           let attachments_url = result.data.attachments_url && result.data.attachments_url.map((item,key)=>{