diff --git a/freqtrade/freqai/data_drawer.py b/freqtrade/freqai/data_drawer.py
index cfae6f5d3..f8b8f0de4 100644
--- a/freqtrade/freqai/data_drawer.py
+++ b/freqtrade/freqai/data_drawer.py
@@ -317,9 +317,9 @@ class FreqaiDataDrawer:
         index = self.historic_predictions[pair].index[-1:]
         columns = self.historic_predictions[pair].columns
 
-        nan_df = pd.DataFrame(np.nan, index=index, columns=columns)
+        zeros_df = pd.DataFrame(np.zeros, index=index, columns=columns)
         self.historic_predictions[pair] = pd.concat(
-            [self.historic_predictions[pair], nan_df], ignore_index=True, axis=0)
+            [self.historic_predictions[pair], zeros_df], ignore_index=True, axis=0)
         df = self.historic_predictions[pair]
 
         # model outputs and associated statistics