diff --git a/install/install.php b/install/install.php
index 1c448262429bfd54dca85662872b8f15fa82eff9..5f46d0ad27ae235971b4273a3faa9e260b9409af 100644
--- a/install/install.php
+++ b/install/install.php
@@ -62,7 +62,7 @@ $dist = get_distname();
 if($dist['id'] == '') die('Linux Dustribution or Version not recognized.');
 
 //** Include the distribution specific installer class library and configuration
-if(is_file('dist/lib/'.strtolower($dist['name']).'.lib.php')) include_once('dist/lib/'.strtolower($dist['name']).'.lib.php');
+if(is_file('dist/lib/'.$dist['baseid'].'.lib.php')) include_once('dist/lib/'.$dist['baseid'].'.lib.php');
 include_once('dist/lib/'.$dist['id'].'.lib.php');
 include_once('dist/conf/'.$dist['id'].'.conf.php');
 
diff --git a/install/lib/install.lib.php b/install/lib/install.lib.php
index 24c596241beb778397d4c0a22ce96a54e60a81b3..ff47eee8288b3cba247e53e8b8fe9ca104979df6 100644
--- a/install/lib/install.lib.php
+++ b/install/lib/install.lib.php
@@ -68,12 +68,14 @@ function get_distname() {
 			$distname = 'Debian';
 			$distver = '4.0';
 			$distid = 'debian40';
+			$distbaseid = 'debian';
 			swriteln("Operating System: Debian 4.0 or compatible\n");
 		}
 		if(trim(file_get_contents('/etc/debian_version')) == 'lenny/sid') {
 			$distname = 'Debian';
 			$distver = 'Lenny/Sid';
 			$distid = 'debian40';
+			$distbaseid = 'debian';
 			swriteln("Operating System: Debian Lenny/Sid or compatible\n");
 		}
 	}
@@ -84,6 +86,7 @@ function get_distname() {
 			$distname = 'openSUSE';
 			$distver = '11.0';
 			$distid = 'opensuse110';
+			$distbaseid = 'opensuse';
 			swriteln("Operating System: openSUSE 11.0 or compatible\n");
 		}
 	}
@@ -98,6 +101,7 @@ function get_distname() {
 			$distname = 'Fedora';
 			$distver = '9';
 			$distid = 'fedora9';
+			$distbaseid = 'fedora';
 			swriteln("Operating System: Fedora 9 or compatible\n");
 		}
 		
@@ -106,7 +110,7 @@ function get_distname() {
 		die('unrecognized linux distribution');
 	}
 	
-	return array('name' => $distname, 'version' => $distver, 'id' => $distid);
+	return array('name' => $distname, 'version' => $distver, 'id' => $distid, 'baseid' => $distbaseid);
 }
 
 function sread() {
diff --git a/install/update.php b/install/update.php
index 59c784a2b8f726d38cd004962aa05caa0e6113e6..2a0054e5ab4b3450911d4b7040833ad7a768d3c2 100644
--- a/install/update.php
+++ b/install/update.php
@@ -59,15 +59,18 @@ if(is_dir('/root/ispconfig') || is_dir('/home/admispconfig')) {
 }
 
 //** Get distribution identifier
-$distname = get_distname();
+$dist = get_distname();
 
 include_once("/usr/local/ispconfig/server/lib/config.inc.php");
 $conf_old = $conf;
 unset($conf);
 
+if($dist['id'] == '') die('Linux Dustribution or Version not recognized.');
+
 //** Include the distribution specific installer class library and configuration
-include_once('dist/lib/'.$distname.'.lib.php');
-include_once('dist/conf/'.$distname.'.conf.php');
+if(is_file('dist/lib/'.$dist['baseid'].'.lib.php')) include_once('dist/lib/'.$dist['baseid'].'.lib.php');
+include_once('dist/lib/'.$dist['id'].'.lib.php');
+include_once('dist/conf/'.$dist['id'].'.conf.php');
 
 //** Get hostname
 exec('hostname -f', $tmp_out);