diff --git a/freqtrade/optimize/hyperopt_auto.py b/freqtrade/optimize/hyperopt_auto.py
index 03f7dd21e..43e92d9c6 100644
--- a/freqtrade/optimize/hyperopt_auto.py
+++ b/freqtrade/optimize/hyperopt_auto.py
@@ -74,7 +74,7 @@ class HyperOptAuto(IHyperOpt):
         return self._get_indicator_space('sell', 'sell_indicator_space')
 
     def protection_space(self) -> List['Dimension']:
-        return self._get_indicator_space('protection', 'indicator_space')
+        return self._get_indicator_space('protection', 'protection_space')
 
     def generate_roi_table(self, params: Dict) -> Dict[int, float]:
         return self._get_func('generate_roi_table')(params)