diff --git a/lib/dynamo-restore.js b/lib/dynamo-restore.js
index b341fb8..8325fbf 100755
--- a/lib/dynamo-restore.js
+++ b/lib/dynamo-restore.js
@@ -33,6 +33,9 @@ function DynamoRestore(options) {
 
     this.options = options;
     this.dynamodb = new AWS.DynamoDB();
+
+    this.batches = []; // Initialize batches as an empty array
+    this.requestItems = []; // Initialize requestItems as an empty array
 }
 
 // Stick to prototypal inheritance. While this can be done differently 
@@ -122,6 +125,9 @@ DynamoRestore.prototype._checkTableExists = function(error, data) {
 };
 
 DynamoRestore.prototype._startDownload = function() {
+    this.batches = this.batches || [];
+    this.requestItems = this.requestItems || [];
+
     var s3 = new AWS.S3();
     var params = {
         Bucket: this.options.s3bucket,