diff --git a/examples/vn_trader/run.py b/examples/vn_trader/run.py
index 55ca8949..bcc8366d 100644
--- a/examples/vn_trader/run.py
+++ b/examples/vn_trader/run.py
@@ -31,7 +31,7 @@ from vnpy.gateway.bitmex import BitmexGateway
 # from vnpy.gateway.coinbase import CoinbaseGateway
 # from vnpy.gateway.bitstamp import BitstampGateway
 # from vnpy.gateway.gateios import GateiosGateway
-# from vnpy.gateway.bybit import BybitGateway
+from vnpy.gateway.bybit import BybitGateway
 
 from vnpy.app.cta_strategy import CtaStrategyApp
 # from vnpy.app.csv_loader import CsvLoaderApp
@@ -79,7 +79,7 @@ def main():
     # main_engine.add_gateway(CoinbaseGateway)
     # main_engine.add_gateway(BitstampGateway)
     # main_engine.add_gateway(GateiosGateway)
-    # main_engine.add_gateway(BybitGateway)
+    main_engine.add_gateway(BybitGateway)
 
     main_engine.add_app(CtaStrategyApp)
     main_engine.add_app(CtaBacktesterApp)
diff --git a/vnpy/gateway/bybit/bybit_gateway.py b/vnpy/gateway/bybit/bybit_gateway.py
index d405d2e3..78461aee 100644
--- a/vnpy/gateway/bybit/bybit_gateway.py
+++ b/vnpy/gateway/bybit/bybit_gateway.py
@@ -541,7 +541,7 @@ class BybitRestApi(RestClient):
                         exchange=req.exchange,
                         datetime=dt,
                         interval=req.interval,
-                        volume=int(d["volume"]),
+                        volume=float(d["volume"]),
                         open_price=float(d["open"]),
                         high_price=float(d["high"]),
                         low_price=float(d["low"]),
diff --git a/vnpy/trader/utility.py b/vnpy/trader/utility.py
index 256a26f8..279d9410 100644
--- a/vnpy/trader/utility.py
+++ b/vnpy/trader/utility.py
@@ -4,6 +4,7 @@ General utility functions.
 
 import json
 import logging
+import sys
 from pathlib import Path
 from typing import Callable, Dict
 from decimal import Decimal
@@ -58,6 +59,7 @@ def _get_trader_dir(temp_name: str):
 
 
 TRADER_DIR, TEMP_DIR = _get_trader_dir(".vntrader")
+sys.path.append(str(TRADER_DIR))
 
 
 def get_file_path(filename: str):