diff --git a/src/util/chain.util.ts b/src/util/chain.util.ts
index 6e2259e..7b0e385 100644
--- a/src/util/chain.util.ts
+++ b/src/util/chain.util.ts
@@ -91,9 +91,22 @@ export function universalChainCb(reqData: any, req: any) {
   return req
     .on("presend", function (dataObj: any) {
       if (jc.wallet.isInternal) {
-        console.log("before send tran: ", dataObj);
+        console.log("before send tran: ", JSON.stringify(dataObj));
+        let gasPrice;
+        if (
+          !dataObj.gasPrice &&
+          dataObj.maxPriorityFeePerGas &&
+          dataObj.maxFeePerGas
+        ) {
+          gasPrice = toBN(dataObj.maxFeePerGas)
+            .sub(toBN(dataObj.maxPriorityFeePerGas))
+            .div(toBN(2))
+            .mul(toBN(1000000000));
+        } else if (dataObj.gasPrice) {
+          gasPrice = toBN(dataObj.gasPrice);
+        }
         reqData.gas = toBN(dataObj.gas).toString();
-        reqData.gasPrice = toBN(dataObj.gasPrice).toString();
+        reqData.gasPrice = gasPrice.toString();
         reqData.transactionHash = dataObj.transactionHash;
         reqData.chain = jc.wallet.currentChain.id;
         reqData.startTime = Date.now();