diff --git a/index.md b/index.md
index f5d1c2f43c1af26da781b10d26f181571f07f564..b856b1e87c48009247987357dca1e8757fec6772 100644
--- a/index.md
+++ b/index.md
@@ -6,13 +6,13 @@ nav_order: 1
 
 # Computer Vision
 
-## [Camera Sensors]({{ '/1_cameras.html' | relative_url }})
+## [Camera Sensors]({{ '/topics/1_cameras' | relative_url }})
 
 Sensor basics
 
-## [Passive Scanning]({{ '/2_passive.html' | relative_url }})
+## [Passive Scanning]({{ '/topics/2_passive' | relative_url }})
 
 
-## [Active Scanning]({{ '/3_active.html' | relative_url }})
+## [Active Scanning]({{ '/topics/3_active' | relative_url }})
 
-## [Mechanical Digitizing]({{ '/4_mechanical.html' | relative_url }})
+## [Mechanical Digitizing]({{ '/topics/4_mechanical' | relative_url }})