diff --git a/install/lib/install.lib.php b/install/lib/install.lib.php
index 5c5bdc7a0b34e81c8ffc3657690120714412e086..1bb366fc657dc1e291fa32fa9abe8b884f6b8618 100644
--- a/install/lib/install.lib.php
+++ b/install/lib/install.lib.php
@@ -307,7 +307,7 @@ function get_distname() {
 			$distid = 'centos53';
 			$distbaseid = 'fedora';
 			swriteln("Operating System: CentOS 5 or compatible\n");
-		} elseif(stristr($content, 'CentOS Linux release 6')) {
+		} elseif(stristr($content, 'CentOS Linux release 6') || stristr($content, 'CentOS release 6')) {
 			$distname = 'CentOS';
 			$distver = 'Unknown';
 			$distid = 'centos53';
diff --git a/server/lib/classes/monitor_tools.inc.php b/server/lib/classes/monitor_tools.inc.php
index 3ff25c01e16b6911aa7d44872867544d6e00682f..30b1d477d188ffb4d4f76657b32d423fb6cd0a63 100644
--- a/server/lib/classes/monitor_tools.inc.php
+++ b/server/lib/classes/monitor_tools.inc.php
@@ -278,7 +278,7 @@ class monitor_tools {
 			$distver = 'Unknown';
 			$distid = 'centos53';
 			$distbaseid = 'fedora';
-		} elseif(stristr($content, 'CentOS Linux release 6')) {
+		} elseif(stristr($content, 'CentOS Linux release 6') || stristr($content, 'CentOS release 6')) {
 			$distname = 'CentOS';
 			$distver = 'Unknown';
 			$distid = 'centos53';