diff --git a/lam/lib/account.inc b/lam/lib/account.inc
index 181218bb..91415019 100644
--- a/lam/lib/account.inc
+++ b/lam/lib/account.inc
@@ -482,7 +482,7 @@ function get_preg($argument, $regexp) {
 					$pregexpr = '/^([a-z0-9\\.\\_-])+$/';
 					break;
 		case "unixhost":		// Unix hosts
-					$pregexpr = '/^([a-z0-9\\.\\_-])*$/';
+					$pregexpr = '/^([a-z0-9,\\.\\_-])*$/';
 					break;
 		case 'digit2':			// Same as digit but also -1
 					$pregexpr = '/^(([-][1])|([[:digit:]]*))$/';