diff --git a/code/Controllers/CMSMain.php b/code/Controllers/CMSMain.php
index 8ea0251b40..dde45200c6 100644
--- a/code/Controllers/CMSMain.php
+++ b/code/Controllers/CMSMain.php
@@ -432,12 +432,12 @@ public function SearchForm()
             'q[LastEditedFrom]',
             _t('CMSSearch.FILTERDATEFROM', 'From')
         );
-        $dateFrom->setShowCalendar(true);
+        $dateFrom->setHTML5(true);
         $dateTo = new DateField(
             'q[LastEditedTo]',
             _t('CMSSearch.FILTERDATETO', 'To')
         );
-        $dateTo->setShowCalendar(true);
+        $dateTo->setHTML5(true);
         $pageFilter = new DropdownField(
             'q[FilterClass]',
             _t('CMSMain.PAGES', 'Page status'),