diff --git a/piker/brokers/kraken.py b/piker/brokers/kraken.py
index 1a36f56a..44e4e6b0 100644
--- a/piker/brokers/kraken.py
+++ b/piker/brokers/kraken.py
@@ -319,9 +319,9 @@ class Client:
         }
         if reqid is None:
             # Build order data for kraken api
-            data["ordertype"] = "limit"
-            data["type"] = action
-            data["volume"] = str(size)
+            data |= {
+                "ordertype": "limit", "type": action, "volume": str(size)
+            }
             return await self.endpoint('AddOrder', data)
         else:
             # Edit order data for kraken api