diff --git a/freqtrade/tests/testdata/download_backtest_data.py b/freqtrade/tests/testdata/download_backtest_data.py
index 16f4c0802..b1508aed7 100755
--- a/freqtrade/tests/testdata/download_backtest_data.py
+++ b/freqtrade/tests/testdata/download_backtest_data.py
@@ -8,13 +8,17 @@ from freqtrade import exchange
 from freqtrade.exchange import Bittrex
 
 PAIRS = ['BTC-OK', 'BTC-NEO', 'BTC-DASH', 'BTC-ETC', 'BTC-ETH', 'BTC-SNT']
+TICKER_INTERVAL = 1  # ticker interval in minutes (currently implemented: 1 and 5)
 OUTPUT_DIR = path.dirname(path.realpath(__file__))
 
 # Init Bittrex exchange
 exchange._API = Bittrex({'key': '', 'secret': ''})
 
 for pair in PAIRS:
-    data = exchange.get_ticker_history(pair)
-    filename = path.join(OUTPUT_DIR, '{}.json'.format(pair.lower()))
+    data = exchange.get_ticker_history(pair, TICKER_INTERVAL)
+    filename = path.join(OUTPUT_DIR, '{}-{}m.json'.format(
+        pair.lower(),
+        TICKER_INTERVAL,
+    ))
     with open(filename, 'w') as fp:
         json.dump(data, fp)