diff --git a/lib/plugins/acl/admin.php b/lib/plugins/acl/admin.php
index b15ac122273921c3e005cf1cb5b5c302d88742fe..6301f1739f70774176c255a34ccc832455e230c9 100644
--- a/lib/plugins/acl/admin.php
+++ b/lib/plugins/acl/admin.php
@@ -699,7 +699,7 @@ class admin_plugin_acl extends DokuWiki_Admin_Plugin {
 
         if($this->who &&
            !in_array($this->who,$this->usersgroups) &&
-           !in_array($this->who,$specials)){
+           !in_array($this->who,$this->specials)){
 
             if($this->who{0} == '@'){
                 $gsel = ' selected="selected"';