diff --git a/modules/dashboard/edit.php b/modules/dashboard/edit.php
index 5b8f8a547..2d481a931 100755
--- a/modules/dashboard/edit.php
+++ b/modules/dashboard/edit.php
@@ -452,6 +452,7 @@ echo '
             /* locales: allLocales, */
             locale: globals.locale,
             slotEventOverlap: false,
+            schedulerLicenseKey: "GPL-My-Project-Is-Open-Source",
             hiddenDays: globals.dashboard.show_sunday ? [] : [0],
             header: {
                 left: "prev,next today",