diff --git a/freqtrade/freqai/data_drawer.py b/freqtrade/freqai/data_drawer.py
index 36d981840..37dd0344a 100644
--- a/freqtrade/freqai/data_drawer.py
+++ b/freqtrade/freqai/data_drawer.py
@@ -518,7 +518,7 @@ class FreqaiDataDrawer:
             rapidjson.dump(dk.data, fp, default=self.np_encoder, number_mode=rapidjson.NM_NATIVE)
 
         # save the train data to file so we can check preds for area of applicability later
-        dk.data_dictionary["train_features"].astype("float32").to_pickle(
+        dk.data_dictionary["train_features"].to_pickle(
             save_path / f"{dk.model_filename}_trained_df.pkl.bz2"
         )