diff --git a/01.curriculum/01.physics-chemistry-biology/03.niv3/02.geometrical-optics/02.geometrical-optics-foundings/05.fermat-application/topic.en.md b/01.curriculum/01.physics-chemistry-biology/03.niv3/02.geometrical-optics/02.geometrical-optics-foundings/05.fermat-application/topic.en.md
deleted file mode 100644
index 072335fdb..000000000
--- a/01.curriculum/01.physics-chemistry-biology/03.niv3/02.geometrical-optics/02.geometrical-optics-foundings/05.fermat-application/topic.en.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-title: 'From the Fermat''s principle to the 4 laws of geometrical optics'
-routable: true
----
-