diff --git a/src/app/statistics/matomo.service.ts b/src/app/statistics/matomo.service.ts
index dab351e6b5..e47d59aadf 100644
--- a/src/app/statistics/matomo.service.ts
+++ b/src/app/statistics/matomo.service.ts
@@ -145,7 +145,7 @@ export class MatomoService {
    */
   private appendTrackerId(url: string, visitorId: string) {
     const updatedURL = new URL(url);
-    if (visitorId != null) {
+    if (isNotEmpty(visitorId)) {
       updatedURL.searchParams.append('trackerId', visitorId);
     }
     return updatedURL.toString();