From 1af4589320aef748ac2af3d5526f0978bf0b9fb5 Mon Sep 17 00:00:00 2001
From: tinkle-community <tinklefund@gmail.com>
Date: Thu, 1 Jan 2026 13:23:36 +0800
Subject: [PATCH] fix: improve Hyperliquid order execution compatibility

---
 trader/hyperliquid_trader.go | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/trader/hyperliquid_trader.go b/trader/hyperliquid_trader.go
index 0f1d3ca9..48a94aba 100644
--- a/trader/hyperliquid_trader.go
+++ b/trader/hyperliquid_trader.go
@@ -2078,8 +2078,7 @@ func (t *HyperliquidTrader) GetTrades(startTime time.Time, limit int) ([]TradeRe
 	return trades, nil
 }
 
-// defaultBuilder is the builder info for order routing
-var defaultBuilder = &hyperliquid.BuilderInfo{
-	Builder: "0x891dc6f05ad47a3c1a05da55e7a7517971faaf0d",
-	Fee:     10,
-}
+// defaultBuilder is nil to avoid requiring users to approve builder fee
+// Previously used builder address: 0x891dc6f05ad47a3c1a05da55e7a7517971faaf0d
+// If builder fee is needed in the future, implement approval flow first
+var defaultBuilder *hyperliquid.BuilderInfo = nil