diff --git a/classes/external/get_kanban_content.php b/classes/external/get_kanban_content.php
index 124a587d..7c31f968 100644
--- a/classes/external/get_kanban_content.php
+++ b/classes/external/get_kanban_content.php
@@ -469,6 +469,7 @@ public static function execute(int $cmid, int $boardid, int $timestamp = 0, bool
         $common->history = $kanban->history;
         $common->updatefails = 0;
         $common->usenumbers = $kanban->usenumbers;
+        $common->linknumbers = $kanban->linknumbers;
 
         if (!$asupdate) {
             $common->template = $DB->get_field_sql(
diff --git a/mod_form.php b/mod_form.php
index 41090aa3..7302c542 100644
--- a/mod_form.php
+++ b/mod_form.php
@@ -66,6 +66,7 @@ public function definition(): void {
         $mform->addHelpButton('linknumbers', 'linknumbers', 'mod_kanban');
         $mform->hideIf('linknumbers', 'usenumbers', 'notchecked');
         $mform->setDefault('linknumbers', 1);
+        $mform->setType('linknumbers', PARAM_INT);
 
         $this->standard_coursemodule_elements();