From eebefc6c8ae817a09b29a13eec1c4fe60242745b Mon Sep 17 00:00:00 2001
From: bluezdot <72647326+bluezdot@users.noreply.github.com>
Date: Wed, 9 Apr 2025 18:18:58 +0700
Subject: [PATCH] [Issue-4167] hot-fix: fix estimate fee using legacy for
 ternoa staking

---
 .../extension-base/src/services/fee-service/utils/index.ts    | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/packages/extension-base/src/services/fee-service/utils/index.ts b/packages/extension-base/src/services/fee-service/utils/index.ts
index 22f71cb65d0..fadc8fc64be 100644
--- a/packages/extension-base/src/services/fee-service/utils/index.ts
+++ b/packages/extension-base/src/services/fee-service/utils/index.ts
@@ -162,6 +162,10 @@ export const calculateGasFeeParams = async (web3: _EvmApi, networkKey: string, u
   }
 
   try {
+    if (networkKey === 'ternoaZkEvm_testnet' || networkKey === 'ternoaZkEvm') {
+      throw new Error('This chain is not support EIP1559 Fee');
+    }
+
     if (networkKey === 'polygonzkEvm_cardona' || networkKey === 'polygonZkEvm') {
       const isTestnet = networkKey === 'polygonzkEvm_cardona';
       const gasDomain = isTestnet ? POLYGON_GAS_INDEXER.TESTNET : POLYGON_GAS_INDEXER.MAINNET;