diff --git a/01.curriculum/02.mathematic/04.niv4/topic.en.md b/01.curriculum/02.mathematic/04.niv4/topic.en.md
index 41b4fffca..01e5fa8ab 100644
--- a/01.curriculum/02.mathematic/04.niv4/topic.en.md
+++ b/01.curriculum/02.mathematic/04.niv4/topic.en.md
@@ -1,4 +1,7 @@
 ---
 title: mountains
+published: true
+routable: false
+visible: false
 ---