diff --git a/lib/ds_ldap.php b/lib/ds_ldap.php
index fa84aed..76d3467 100644
--- a/lib/ds_ldap.php
+++ b/lib/ds_ldap.php
@@ -1146,12 +1146,12 @@ class ldap extends DS {
 		if (is_array($dn)) {
 			$a = array();
 			foreach ($dn as $key => $rdn) {
-				$a[$key] = preg_replace_callback('/\\\([0-9A-Fa-f]{2})/', function($m) { return chr(hexdec('${m[1]}')); }, $rdn);
+				$a[$key] = preg_replace_callback('/\\\([0-9A-Fa-f]{2})/', function($m) { return chr(hexdec($m[1])); }, $rdn);
 			}
 			return $a;
 
 		} else {
-			return preg_replace_callback('/\\\([0-9A-Fa-f]{2})/', function($m) { return chr(hexdec('${m[1]}')); }, $dn);
+			return preg_replace_callback('/\\\([0-9A-Fa-f]{2})/', function($m) { return chr(hexdec($m[1])); }, $dn);
 		}
 	}