diff --git a/js/src/api/contract/contract.js b/js/src/api/contract/contract.js
index 95dcf2e72..2a090e8c6 100644
--- a/js/src/api/contract/contract.js
+++ b/js/src/api/contract/contract.js
@@ -458,7 +458,7 @@ export default class Contract {
           }
 
           try {
-            this.sendData(subscriptionId, null, this.parseEventLogs(logs));
+            this._sendData(subscriptionId, null, this.parseEventLogs(logs));
           } catch (error) {
             console.error('_sendSubscriptionChanges', error);
           }