diff --git a/install/dist/lib/fedora.lib.php b/install/dist/lib/fedora.lib.php
index 5dd14895d88faa89f83e576600f791cec1b3b400..20fc3a8601527c1b25f4325f933ec916c2f16af4 100644
--- a/install/dist/lib/fedora.lib.php
+++ b/install/dist/lib/fedora.lib.php
@@ -621,7 +621,7 @@ class installer_dist extends installer_base {
 
 		//* Chown the slave subdirectory to $conf['bind']['bind_user']
 		exec('chown '.$conf['bind']['bind_user'].':'.$conf['bind']['bind_group'].' '.$content);
-		exec('chmod 770 '.$content);
+		exec('chmod 2770 '.$content);
 
 	}
 
diff --git a/install/lib/installer_base.lib.php b/install/lib/installer_base.lib.php
index 300c64f58e979154702b45630cc799ed0c46cd63..85790ce8ef193ccbddbd1781d5ee8bd3496c8b30 100644
--- a/install/lib/installer_base.lib.php
+++ b/install/lib/installer_base.lib.php
@@ -1230,11 +1230,12 @@ class installer_base {
 
 		//* Create the slave subdirectory
 		$content .= 'slave';
-		if(!@is_dir($content)) mkdir($content, 0770, true);
+		if(!@is_dir($content)) mkdir($content, 2770, true);
 
 		//* Chown the slave subdirectory to $conf['bind']['bind_user']
 		chown($content, $conf['bind']['bind_user']);
 		chgrp($content, $conf['bind']['bind_group']);
+		chmod($content, 2770);
 
 	}