diff --git a/lam-0.4/lib/config.inc b/lam-0.4/lib/config.inc
index 4e58c9a4..4e685889 100644
--- a/lam-0.4/lib/config.inc
+++ b/lam-0.4/lib/config.inc
@@ -324,7 +324,7 @@ class Config {
 	// returns true if $value has correct format
 	function set_Adminstring($value) {
 		if (is_string($value) &&
-		eregi("^[a-z0-9\\-]+=[a-z0-9\\-]+(,[a-z0-9\\-]+=[a-z0-9 \\-]+)+(;[a-z0-9\\-]+=[a-z0-9\\-]+(,[a-z0-9\\-]+=[a-z0-9 \\-]+)+)*$", $value)) {
+		eregi("^[^;]+(;[^;]+)*$", $value)) {
 			$this->Admins = $value;
 		}
 		else return false;
diff --git a/lam/lib/config.inc b/lam/lib/config.inc
index c6530fc4..5d41f621 100644
--- a/lam/lib/config.inc
+++ b/lam/lib/config.inc
@@ -396,7 +396,7 @@ class Config {
 	*/
 	function set_Adminstring($value) {
 		if (is_string($value) &&
-		eregi("^[a-z0-9\\-]+=[a-z0-9\\-]+(,[a-z0-9\\-]+=[a-z0-9 \\-]+)+(;[a-z0-9\\-]+=[a-z0-9\\-]+(,[a-z0-9\\-]+=[a-z0-9 \\-]+)+)*$", $value)) {
+		eregi("^[^;]+(;[^;]+)*$", $value)) {
 			$this->Admins = $value;
 		}
 		else return false;