diff --git a/README.md b/README.md
index c902724..4e8da40 100644
--- a/README.md
+++ b/README.md
@@ -30,6 +30,10 @@ handling the ACL and more.
 
 
 ## Supported OSes
+
+Linux kernel v4.13.0 or later is required.
+
+- Debian 9.0 (stretch) - [package status / QA page](https://packages.qa.debian.org/thunderbolt-tools) - [bug reports](https://bugs.debian.org/src:thunderbolt-tools)
 - Ubuntu* 16.04 and 17.04
 - Fedora* 26
 - Clear Linux*