diff --git a/vnpy/trader/constant.py b/vnpy/trader/constant.py
index f4727ba3..5f2ba822 100644
--- a/vnpy/trader/constant.py
+++ b/vnpy/trader/constant.py
@@ -101,6 +101,7 @@ class Exchange(Enum):
     BITMEX = "BITMEX"
     OKEX = "OKEX"
     HUOBI = "HUOBI"
+    BITFINEX = "BITFINEX"
 
 
 class Currency(Enum):