diff --git a/freqtrade/resolvers/strategy_resolver.py b/freqtrade/resolvers/strategy_resolver.py
index b1b66e3ae..19bd014f9 100644
--- a/freqtrade/resolvers/strategy_resolver.py
+++ b/freqtrade/resolvers/strategy_resolver.py
@@ -196,9 +196,9 @@ class StrategyResolver(IResolver):
             strategy._populate_fun_len = len(getfullargspec(strategy.populate_indicators).args)
             strategy._buy_fun_len = len(getfullargspec(strategy.populate_buy_trend).args)
             strategy._sell_fun_len = len(getfullargspec(strategy.populate_sell_trend).args)
-            if any([x == 2 for x in [strategy._populate_fun_len,
+            if any(x == 2 for x in [strategy._populate_fun_len,
                                      strategy._buy_fun_len,
-                                     strategy._sell_fun_len]]):
+                                     strategy._sell_fun_len]):
                 strategy.INTERFACE_VERSION = 1
 
             return strategy