diff --git a/calendar/classes/external/day_exporter.php b/calendar/classes/external/day_exporter.php
index 510922cfc50..3920107b763 100644
--- a/calendar/classes/external/day_exporter.php
+++ b/calendar/classes/external/day_exporter.php
@@ -147,10 +147,6 @@ class day_exporter extends exporter {
             'navigation' => [
                 'type' => PARAM_RAW,
             ],
-            'popovertitle' => [
-                'type' => PARAM_RAW,
-                'default' => '',
-            ],
             'haslastdayofevent' => [
                 'type' => PARAM_BOOL,
                 'default' => false,
diff --git a/calendar/classes/external/week_day_exporter.php b/calendar/classes/external/week_day_exporter.php
index 5d87d1870ec..951b84e3534 100644
--- a/calendar/classes/external/week_day_exporter.php
+++ b/calendar/classes/external/week_day_exporter.php
@@ -67,28 +67,10 @@ class week_day_exporter extends day_exporter {
     protected static function define_other_properties() {
         $return = parent::define_other_properties();
         $return = array_merge($return, [
-            'timestamp' => [
-                'type' => PARAM_INT,
-            ],
-            'neweventtimestamp' => [
-                'type' => PARAM_INT,
-            ],
-            'viewdaylink' => [
-                'type' => PARAM_URL,
-                'optional' => true,
-            ],
-            'calendareventtypes' => [
-                'type' => PARAM_RAW,
-                'multiple' => true,
-            ],
             'popovertitle' => [
                 'type' => PARAM_RAW,
                 'default' => '',
             ],
-            'haslastdayofevent' => [
-                'type' => PARAM_BOOL,
-                'default' => false,
-            ],
         ]);
 
         return $return;