diff --git a/js/base/Exchange.js b/js/base/Exchange.js
index <HASH>..<HASH> 100644
--- a/js/base/Exchange.js
+++ b/js/base/Exchange.js
@@ -677,8 +677,8 @@ module.exports = class Exchange {
     async fetchL2OrderBook (symbol, params = {}) {
         let orderbook = await this.fetchOrderBook (symbol, params)
         return extend (orderbook, {
-            'bids': aggregate (orderbook.bids),
-            'asks': aggregate (orderbook.asks),
+            'bids': sortBy (aggregate (orderbook.bids), 0, true),
+            'asks': sortBy (aggregate (orderbook.asks), 0),
         })
     }
Exchange: fix for "removed the bidask sorting from fetchL2OrderBook to fetchOrderBook #<I>"