From 85c60519b0d9c3642fd6f20e8d948b74783a6b71 Mon Sep 17 00:00:00 2001
From: Matthias <xmatthias@outlook.com>
Date: Mon, 9 Jul 2018 22:11:12 +0200
Subject: [PATCH] Fix test crash

---
 freqtrade/exchange/__init__.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/freqtrade/exchange/__init__.py b/freqtrade/exchange/__init__.py
index d87d3fc85..972ff49ca 100644
--- a/freqtrade/exchange/__init__.py
+++ b/freqtrade/exchange/__init__.py
@@ -70,8 +70,9 @@ class Exchange(object):
         # Check if all pairs are available
         self.validate_pairs(config['exchange']['pair_whitelist'])
 
-        # Check if timeframe is available
-        self.validate_timeframes(config['ticker_interval'])
+        if config.get('ticker_interval'):
+            # Check if timeframe is available
+            self.validate_timeframes(config['ticker_interval'])
 
     def _init_ccxt(self, exchange_config: dict) -> ccxt.Exchange:
         """