diff --git a/index.md b/index.md
index 01188b8901a29f0c28f4fa52b32c87c304184fc5..4ade3d7d1f4313c3f5f6853bb297145191e6284c 100644
--- a/index.md
+++ b/index.md
@@ -6,14 +6,14 @@ nav_order: 1
 
 # Computer vision
 
-## [Camera sensors]({{ '/topics/01_cameras.html' | relative_url }})
+## [Camera sensors]({{ '/01_cameras.html' | relative_url }})
 
 Sensor basics
 
-## [Passive scanning]({{ '/topics/02_passive.html' | relative_url }})
+## [Passive scanning]({{ '/02_passive.html' | relative_url }})
 
 Testing - Photogrammetry / Stereo Photogrammetry
 
-## [Active scanning]({{ '/topics/03_active.html' | relative_url }})
+## [Active scanning]({{ '/03_active.html' | relative_url }})
 
 Testing - Mechanical Methods / Light / Lasers