diff --git a/api/src/config/matomo.config.ts b/api/src/config/matomo.config.ts
index 1df0413322aa28f7ec179e031ec9020c50cf80ef..274ae8cbdbd66075e8a8a0d7252843b70ee3dfbd 100644
--- a/api/src/config/matomo.config.ts
+++ b/api/src/config/matomo.config.ts
@@ -3,7 +3,7 @@ import { registerAs } from '@nestjs/config';
 export default registerAs('matomo', () => {
   return {
     enabled: process.env.MATOMO_ENABLED || false,
-    urlBase: process.env.MAMOTO_URL || '',
+    urlBase: process.env.MAMOTO_URL || undefined,
     siteId: process.env.MATOMO_SITEID || undefined,
   };
 });