diff --git a/README.md b/README.md
index e1ac834..f3fa5db 100755
--- a/README.md
+++ b/README.md
@@ -4,5 +4,5 @@ KiCad PCB layout
 ![PCB](rev.04/IR-endstop-04.png)
 
 * [Interactive bom](http://htmlpreview.github.io/?https://github.com/prusa3d/MKxS-IR-sensor/blob/master/rev.04/IR-endstop-04-ibom.html)
-* [STEP 3D model](rev.04/IR-sensor-04.step)
+* [STEP 3D model](rev.04/IR-endstop-04.step)