diff --git a/docs/hyperopt.md b/docs/hyperopt.md
index e11c93748..f869b9ac1 100644
--- a/docs/hyperopt.md
+++ b/docs/hyperopt.md
@@ -433,7 +433,7 @@ class MyAwesomeStrategy(IStrategy):
     stoploss = -0.05
     timeframe = '15m'
     # Define the parameter spaces
-    coolback_lookback = IntParameter(2, 48, default=5, space="protection", optimize=True)
+    cooldown_lookback = IntParameter(2, 48, default=5, space="protection", optimize=True)
     stop_duration = IntParameter(12, 200, default=5, space="protection", optimize=True)
     use_stop_protection = CategoricalParameter([True, False], default=True, space="protection", optimize=True)
 
@@ -444,7 +444,7 @@ class MyAwesomeStrategy(IStrategy):
 
         prot.append({
             "method": "CooldownPeriod",
-            "stop_duration_candles": self.coolback_lookback.value
+            "stop_duration_candles": self.cooldown_lookback.value
         })
         if self.use_stop_protection.value:
             prot.append({
diff --git a/freqtrade/strategy/hyper.py b/freqtrade/strategy/hyper.py
index e143dda7e..b9f586ac5 100644
--- a/freqtrade/strategy/hyper.py
+++ b/freqtrade/strategy/hyper.py
@@ -294,7 +294,8 @@ class HyperStrategyMixin(object):
         :return:
         """
         if category not in ('buy', 'sell', 'protection', None):
-            raise OperationalException('Category must be one of: "buy", "sell", "protection", None.')
+            raise OperationalException(
+                'Category must be one of: "buy", "sell", "protection", None.')
 
         if category is None:
             params = self.ft_buy_params + self.ft_sell_params + self.ft_protection_params
diff --git a/tests/optimize/test_hyperopt.py b/tests/optimize/test_hyperopt.py
index ef4b85beb..077fb516d 100644
--- a/tests/optimize/test_hyperopt.py
+++ b/tests/optimize/test_hyperopt.py
@@ -1003,6 +1003,8 @@ def test_in_strategy_auto_hyperopt(mocker, hyperopt_conf, tmpdir, fee) -> None:
     hyperopt_conf.update({
         'strategy': 'HyperoptableStrategy',
         'user_data_dir': Path(tmpdir),
+        'hyperopt_random_state': 42,
+        'spaces': ['buy', 'sell', 'protection']
     })
     hyperopt = Hyperopt(hyperopt_conf)
     assert isinstance(hyperopt.custom_hyperopt, HyperOptAuto)
@@ -1010,12 +1012,18 @@ def test_in_strategy_auto_hyperopt(mocker, hyperopt_conf, tmpdir, fee) -> None:
 
     assert hyperopt.backtesting.strategy.buy_rsi.in_space is True
     assert hyperopt.backtesting.strategy.buy_rsi.value == 35
+    assert hyperopt.backtesting.strategy.sell_rsi.value == 74
+    assert hyperopt.backtesting.strategy.protection_cooldown_lookback.value == 30
     buy_rsi_range = hyperopt.backtesting.strategy.buy_rsi.range
     assert isinstance(buy_rsi_range, range)
     # Range from 0 - 50 (inclusive)
     assert len(list(buy_rsi_range)) == 51
 
     hyperopt.start()
+    # All values should've changed.
+    assert hyperopt.backtesting.strategy.protection_cooldown_lookback.value != 30
+    assert hyperopt.backtesting.strategy.buy_rsi.value != 35
+    assert hyperopt.backtesting.strategy.sell_rsi.value != 74
 
 
 def test_SKDecimal():
diff --git a/tests/strategy/strats/hyperoptable_strategy.py b/tests/strategy/strats/hyperoptable_strategy.py
index cc4734e13..9d332e243 100644
--- a/tests/strategy/strats/hyperoptable_strategy.py
+++ b/tests/strategy/strats/hyperoptable_strategy.py
@@ -64,6 +64,17 @@ class HyperoptableStrategy(IStrategy):
     sell_rsi = IntParameter(low=50, high=100, default=70, space='sell')
     sell_minusdi = DecimalParameter(low=0, high=1, default=0.5001, decimals=3, space='sell',
                                     load=False)
+    protection_cooldown_lookback = IntParameter([0, 50], default=30)
+
+    @property
+    def protections(self):
+        prot = []
+
+        prot.append({
+            "method": "CooldownPeriod",
+            "stop_duration_candles": self.protection_cooldown_lookback.value
+        })
+        return prot
 
     def informative_pairs(self):
         """