diff --git a/freqtrade/data/history.py b/freqtrade/data/history.py
index 849b882b2..c6d731afa 100644
--- a/freqtrade/data/history.py
+++ b/freqtrade/data/history.py
@@ -184,7 +184,7 @@ def pair_data_filename(datadir: Optional[Path], pair: str, ticker_interval: str)
     return filename
 
 
-def load_cached_data_for_updating(datadir: Path, pair: str, ticker_interval: str,
+def load_cached_data_for_updating(datadir: Optional[Path], pair: str, ticker_interval: str,
                                   timerange: Optional[TimeRange]) -> Tuple[List[Any],
                                                                            Optional[int]]:
     """
@@ -203,7 +203,7 @@ def load_cached_data_for_updating(datadir: Path, pair: str, ticker_interval: str
             since_ms = arrow.utcnow().shift(minutes=num_minutes).timestamp * 1000
 
     # read the cached file
-    data = load_tickerdata_file(datadir, pair, ticker_interval, TimeRange)
+    data = load_tickerdata_file(datadir, pair, ticker_interval, timerange)
     # remove the last item, could be incomplete candle
     if data:
         data.pop()
diff --git a/freqtrade/tests/data/test_history.py b/freqtrade/tests/data/test_history.py
index a06c5aa23..164ebe01a 100644
--- a/freqtrade/tests/data/test_history.py
+++ b/freqtrade/tests/data/test_history.py
@@ -184,7 +184,8 @@ def test_load_cached_data_for_updating(mocker) -> None:
 
     # same with 'line' timeframe
     num_lines = (test_data[-1][0] - test_data[1][0]) / 1000 / 60 + 120
-    data, start_ts = load_cached_data_for_updating(datadir, 'UNITTEST/BTC', '1m', TimeRange(None, 'line', 0, -num_lines))
+    data, start_ts = load_cached_data_for_updating(datadir, 'UNITTEST/BTC', '1m',
+                                                   TimeRange(None, 'line', 0, -num_lines))
     assert data == []
     assert start_ts < test_data[0][0] - 1