diff --git a/README.md b/README.md
index 18d4baa..c995a30 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 Fork from [quadportnick/docker-cups-airprint](https://github.com/quadportnick/docker-cups-airprint)
 
-This Ubuntu-based Docker image runs a CUPS instance that is meant as an AirPrint relay for printers that are already on the network but not AirPrint capable. I am running this on CentOS. I forked the original to add support for my Brother MFC-7840w printer, and use the latest Ubuntu base.
+This Ubuntu-based Docker image runs a CUPS instance that is meant as an AirPrint relay for printers that are already on the network but not AirPrint capable. I am running this on CentOS, but it should work on other Linux distros. I forked the original to add support for my Brother MFC-7840w printer, and use the latest Ubuntu base.
 
 ## Configuration
 
@@ -32,6 +32,7 @@ docker run --name cups -p 631:631   --restart unless-stopped  \
 CUPS will be configurable at http://[diskstation]:631 using the CUPSADMIN/CUPSPASSWORD.
 
 ## Install avahi on local host:
+These commands only work on Red Hat/CentOS/Fedora. Ubuntu will be different.
 ```
 yum install avahi
 systemctl start avahi-daemon