diff --git a/bfxapi/models/withdraw.py b/bfxapi/models/withdraw.py
index 607c337..0558527 100644
--- a/bfxapi/models/withdraw.py
+++ b/bfxapi/models/withdraw.py
@@ -10,7 +10,7 @@ class WithdrawModel:
     METHOD = 2
     WALLET = 4
     AMOUNT = 5
-    FEE = 7
+    FEE = 8
 
 class Withdraw:
     """