diff --git a/README.md b/README.md
index 837af2f..18098a3 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ This repository contains SCAD files and STLs of the printed parts.
 
  * Prusa Research website : http://prusa3d.com
  * Product page: https://shop.prusa3d.com/en/3d-printers/180-original-prusa-i3-mk3-kit.html
- * Build manual: http://manual.prusa3d.com/c/Original_Prusa_i3_MK3_kit_assembly
+ * Build manual: https://manual.prusa3d.com/c/Original_Prusa_i3_MK3S_kit_assembly
  * Firmware : https://github.com/prusa3d/Prusa-Firmware
  * MK52 heatbed : https://github.com/prusa3d/Heatbed_MK52_magnetic
  * MK3 Power panic : https://github.com/prusa3d/MK3_Power_Panic