diff --git a/piker/brokers/kucoin.py b/piker/brokers/kucoin.py
index 0f5961ae..200943ac 100755
--- a/piker/brokers/kucoin.py
+++ b/piker/brokers/kucoin.py
@@ -111,6 +111,10 @@ class KucoinMktPair(Struct, frozen=True):
     quoteMaxSize: float
     quoteMinSize: float
     symbol: str  # our bs_mktid, kucoin's internal id
+    feeCategory: int
+    makerFeeCoefficient: float
+    takerFeeCoefficient: float
+    st: bool
 
 
 class AccountTrade(Struct, frozen=True):