diff --git a/piker/brokers/kraken/feed.py b/piker/brokers/kraken/feed.py
index 6cc1cb7f..49961b52 100644
--- a/piker/brokers/kraken/feed.py
+++ b/piker/brokers/kraken/feed.py
@@ -62,6 +62,7 @@ class Pair(Struct):
     lot: str  # volume lot size
 
     cost_decimals: int
+    costmin: float
     pair_decimals: int  # scaling decimal places for pair
     lot_decimals: int  # scaling decimal places for volume