diff --git a/src/types/YArray.js b/src/types/YArray.js
index ce60de78..217c154e 100644
--- a/src/types/YArray.js
+++ b/src/types/YArray.js
@@ -32,7 +32,6 @@ export class YArrayEvent extends YEvent {
    */
   constructor (yarray, transaction) {
     super(yarray, transaction)
-    this._transaction = transaction
   }
 }