diff --git a/admin/tool/licensemanager/classes/form/edit_license.php b/admin/tool/licensemanager/classes/form/edit_license.php
index c9f2f1e977e..042efd7f1c1 100644
--- a/admin/tool/licensemanager/classes/form/edit_license.php
+++ b/admin/tool/licensemanager/classes/form/edit_license.php
@@ -77,7 +77,7 @@ class edit_license extends moodleform {
         $mform = $this->_form;
 
         $mform->addElement('text', 'shortname', get_string('shortname', 'tool_licensemanager'));
-        $mform->setType('shortname', PARAM_ALPHANUMEXT);
+        $mform->setType('shortname', PARAM_NOTAGS);
         // Shortname is only editable when user is creating a license.
         if ($this->action != manager::ACTION_CREATE) {
             $mform->freeze('shortname');
diff --git a/admin/tool/licensemanager/index.php b/admin/tool/licensemanager/index.php
index 4c287337ebe..cbcbc9feb7b 100644
--- a/admin/tool/licensemanager/index.php
+++ b/admin/tool/licensemanager/index.php
@@ -29,7 +29,7 @@ require_once($CFG->libdir . '/licenselib.php');
 require_admin();
 
 $action = optional_param('action', '', PARAM_ALPHANUMEXT);
-$license = optional_param('license', '', PARAM_SAFEDIR);
+$license = optional_param('license', '', PARAM_NOTAGS);
 
 // Route via the manager.
 $licensemanager = new \tool_licensemanager\manager();