diff --git a/collections/_diffbot/2019-12-05-hardware-interfaces.md b/collections/_diffbot/2019-12-05-hardware-interfaces.md
index c8147890..6ef8ba83 100644
--- a/collections/_diffbot/2019-12-05-hardware-interfaces.md
+++ b/collections/_diffbot/2019-12-05-hardware-interfaces.md
@@ -19,5 +19,5 @@ header:
   show_overlay_excerpt: true
 sidebar:
   nav: diffbot
-redirect_to: https://ros-mobile-robots.com/hardware-interfaces/
+redirect_to: https://ros-mobile-robots.com/processing_units/hardware-interfaces/
 ---