diff --git a/scripts/plot_dataframe.py b/scripts/plot_dataframe.py
index 7fdc607e0..cc54bfff2 100755
--- a/scripts/plot_dataframe.py
+++ b/scripts/plot_dataframe.py
@@ -74,7 +74,7 @@ def load_trades(args: Namespace, pair: str, timerange: TimeRange) -> pd.DataFram
 
         file = Path(args.exportfilename)
         if file.exists():
-            load_backtest_data(file)
+            trades = load_backtest_data(file)
 
         else:
             trades = pd.DataFrame([], columns=BT_DATA_COLUMNS)