diff --git a/lib/big_query/client/tables.rb b/lib/big_query/client/tables.rb
index ae1ee39..1b97691 100644
--- a/lib/big_query/client/tables.rb
+++ b/lib/big_query/client/tables.rb
@@ -69,14 +69,14 @@ def table_data(table_id, dataset_id = @dataset, options = {})
       # @param opts [Hash] field value hash to be inserted
       # @return [Hash]
       def insert(table_id, opts)
-        request = Google::Apis::BigqueryV2::InsertAllTableDataRequest.new
-        row = Google::Apis::BigqueryV2::InsertAllTableDataRequest::Row.new
         if opts.class == Array
-          request.rows = opts.map{|x| row.json = x; row}
+          rows = opts.map do |x|
+            Google::Apis::BigqueryV2::InsertAllTableDataRequest::Row.new(json: x)
+          end
         else
-          row.json = opts
-          request.rows = [row]
+          rows = [Google::Apis::BigqueryV2::InsertAllTableDataRequest::Row.new(json: opts)]
         end
+        request = Google::Apis::BigqueryV2::InsertAllTableDataRequest.new(rows: rows)
 
         api(
           @client.insert_all_table_data(
diff --git a/test/bigquery.rb b/test/bigquery.rb
index 60a73fd..b1c3946 100644
--- a/test/bigquery.rb
+++ b/test/bigquery.rb
@@ -213,6 +213,11 @@ def test_for_insert_array
     result = @bq.insert('test' , data)
 
     assert_equal result['kind'], "bigquery#tableDataInsertAllResponse"
+
+    # You can check the results. However, the test is slightly slower
+    # sleep 5
+    # result = @bq.query("SELECT * FROM [#{config['dataset']}.test]")
+    # assert_equal result['totalRows'], "2"
   end
 
   def test_for_insert_job