diff --git a/01.curriculum/01.physics-chemistry-biology/02.Niv2/04.optics/03.optical-systems-vergence/topic.en.md b/01.curriculum/01.physics-chemistry-biology/02.Niv2/04.optics/03.optical-systems-vergence/topic.en.md
index cacebcbf6..5834080b6 100644
--- a/01.curriculum/01.physics-chemistry-biology/02.Niv2/04.optics/03.optical-systems-vergence/topic.en.md
+++ b/01.curriculum/01.physics-chemistry-biology/02.Niv2/04.optics/03.optical-systems-vergence/topic.en.md
@@ -1 +1,5 @@
-title: 'Optical systems'
\ No newline at end of file
+---
+title: 'Optical systems'
+published: true
+visible: false
+---
\ No newline at end of file