diff --git a/js/luno.js b/js/luno.js
index <HASH>..<HASH> 100644
--- a/js/luno.js
+++ b/js/luno.js
@@ -323,6 +323,8 @@ module.exports = class luno extends Exchange {
     }
 
     async fetchMyTrades (symbol = undefined, since = undefined, limit = undefined, params = {}) {
+        if (typeof symbol === 'undefined')
+            throw new ExchangeError (this.id + ' fetchMyTrades requires a symbol argument');
         await this.loadMarkets ();
         let market = this.market (symbol);
         let request = {
Adding exception for  missing symbol in fetchMyTrades