diff --git a/backtesting/test/_test.py b/backtesting/test/_test.py
index 82ce1acf..1ca822cf 100644
--- a/backtesting/test/_test.py
+++ b/backtesting/test/_test.py
@@ -775,7 +775,7 @@ def test_indicator_legends(self):
         class S(Strategy):
             def init(self):
                 self.I(lambda: (SMA(self.data.Close, 5), SMA(self.data.Close, 10)), overlay=False,
-                       name='Simple Moving Averages', scatter=False, legends=['SMA 5','SMA 10'])
+                       name='Simple Moving Averages', scatter=False, legends=['SMA 5', 'SMA 10'])
 
             def next(self):
                 pass
@@ -789,6 +789,7 @@ def next(self):
             # Give browser time to open before tempfile is removed
             time.sleep(1)
 
+
 class TestLib(TestCase):
     def test_barssince(self):
         self.assertEqual(barssince(np.r_[1, 0, 0]), 2)