diff --git a/freqtrade/freqai/data_drawer.py b/freqtrade/freqai/data_drawer.py
index 603c477a0..d6dbe8c6c 100644
--- a/freqtrade/freqai/data_drawer.py
+++ b/freqtrade/freqai/data_drawer.py
@@ -297,8 +297,8 @@ class FreqaiDataDrawer:
         # this logic carries users between version without needing to 
         # change their identifier
         if 'close_price' not in df.columns:
-            df['close_price'] = 0
-            df['date_pred'] = 0
+            df['close_price'] = np.nan
+            df['date_pred'] = np.nan
 
         df['close_price'].iloc[-1] = strat_df['close'].iloc[-1]
         df['date_pred'].iloc[-1] = strat_df['date'].iloc[-1]