diff --git a/docs/platforms.rst b/docs/platforms.rst
index 8c281afebd..90f14b02e8 100644
--- a/docs/platforms.rst
+++ b/docs/platforms.rst
@@ -42,8 +42,10 @@ The project aims to support the most recent major version at all times. Support
 for the previous major version will be dropped 2 years after the new major
 version is released or when the vendor itself drops support, whichever comes
 first. In this context, third-party efforts to extend the lifetime of a distro
-are not considered, even when they are endorsed by the vendor (eg. Debian LTS).
-Within each major release, only the most recent minor release is considered.
+are not considered, even when they are endorsed by the vendor (e.g. Debian
+LTS); the same is true of repositories that contain packages backported from
+later releases (e.g. Debian backports). Within each major release, only the
+most recent minor release is considered.
 
 For the purposes of identifying supported software versions available on Linux,
 the project will look at CentOS, Debian, Fedora, openSUSE, RHEL, SLES and