diff --git a/Setup-HTTPS-for-EteSync.md b/Setup-HTTPS-for-EteSync.md
index 8bced51..4124416 100644
--- a/Setup-HTTPS-for-EteSync.md
+++ b/Setup-HTTPS-for-EteSync.md
@@ -1,4 +1,5 @@
 Setting up SSL for EteSync is a breeze by using [Certbot](https://certbot.eff.org/).
+This tutorial assumes you're using Nginx as web server.
 
 ### Install Certbot
 First, make sure your server is reachable by HTTP, and that the HTTPS port (443) is also open.