diff --git a/src/model.rs b/src/model.rs
index ed399c1c..ccc55cf3 100644
--- a/src/model.rs
+++ b/src/model.rs
@@ -653,12 +653,6 @@ pub struct TradeEvent {
     #[serde(rename = "q")]
     pub qty: String,
 
-    #[serde(rename = "b")]
-    pub buyer_order_id: u64,
-
-    #[serde(rename = "a")]
-    pub seller_order_id: u64,
-
     #[serde(rename = "T")]
     pub trade_order_time: u64,