diff --git a/app/assets/javascripts/matomo.js b/app/assets/javascripts/matomo.js
index a48d9477d..c89cfd3e7 100644
--- a/app/assets/javascripts/matomo.js
+++ b/app/assets/javascripts/matomo.js
@@ -26,6 +26,7 @@ if (OSM.MATOMO) {
           matomoTracker.setSessionCookieTimeout(OSM.MATOMO.session_cookie_timeout);
         }
 
+        matomoTracker.setSecureCookie( true );
         matomoTracker.trackPageView();
         matomoTracker.enableLinkTracking();