diff --git a/README.md b/README.md
index b14db7d0af5fbb3a7b596b559f82e0a610758ac6..3bffdbe1f3ac91ea380b68ff2fcb5c18253f225c 100644
--- a/README.md
+++ b/README.md
@@ -35,7 +35,7 @@
 
 ### Requirements
 
-* Ubuntu/Debian**
+* Ubuntu/Debian/CentOS/RHEL**
 * ruby 1.9.3+
 * git 1.7.10+
 * redis 2.0+
diff --git a/doc/install/requirements.md b/doc/install/requirements.md
index ea172733b112035d49aecc8cdbeb94a504bf8f7a..56a2a5efeb06911864a13a28cb87b8cd4b6950a7 100644
--- a/doc/install/requirements.md
+++ b/doc/install/requirements.md
@@ -2,26 +2,24 @@
 
 GitLab is developed for the Linux operating system. For the installations options and instructions please see [the installation section of the readme](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/README.md#installation).
 
-## GitLab officially supports
+## Supported Linux distributions
 
-- Ubuntu Linux
-- Debian/GNU Linux
-
-## GitLab.com offers paid support for
-
-- Red Hat Enterprise Linux (RHEL)
+- Ubuntu
+- Debian
 - CentOS
+- RedHat Enterprise Linux
+- Scientific Linux
 - Oracle Linux
 
-## Not officially supported are
+## Unsupported Linux distributions
 
 - Arch Linux
 - Fedora
 - Gentoo
 
-But on the above distributions it is pretty easy to install GitLab yourself.
+But on the above unsupported distributions is stll possible to install GitLab yourself with the [manual installation guide](https://github.com/gitlabhq/gitlabhq/blob/master/doc/install/installation.md).
 
-## Unsupported Unix Systems
+## Unsupported Unix operating systems
 
 There is nothing that prevents GitLab from running on other Unix operating systems.
 This means you may get it to work on systems running FreeBSD or OS X.