diff --git a/lib/kits/incito-publication/bootstrapper.ts b/lib/kits/incito-publication/bootstrapper.ts
index b699c6fc..04af71f5 100644
--- a/lib/kits/incito-publication/bootstrapper.ts
+++ b/lib/kits/incito-publication/bootstrapper.ts
@@ -56,7 +56,7 @@ interface BootstrapperInit {
     id?: string;
     apiKey?: string;
     coreUrl?: string;
-    eventTracker: Tracker;
+    eventTracker?: Tracker;
 }
 export default class Bootstrapper {
     deviceCategory = getDeviceCategory();