diff --git a/collections/made-in-russia/index.md b/collections/made-in-russia/index.md
index 5890986e842..13565431690 100644
--- a/collections/made-in-russia/index.md
+++ b/collections/made-in-russia/index.md
@@ -4,6 +4,7 @@ items:
 - https://github.com/catboost/catboost
 - https://github.com/nginx
 - https://github.com/theKashey/awesome-made-by-russians
+- https://github.com/sergiomarotco/Network-segmentation-cheat-sheet
 
 display_name: Made in Russia
 created_by: toxblh