diff --git a/packages/coin-kaspa/src/chain-wallet/wallet.ts b/packages/coin-kaspa/src/chain-wallet/wallet.ts
index f9930c2..8500b67 100644
--- a/packages/coin-kaspa/src/chain-wallet/wallet.ts
+++ b/packages/coin-kaspa/src/chain-wallet/wallet.ts
@@ -292,7 +292,7 @@ export class KaspaChainWallet extends BaseChainWallet {
       : isReveal
         ? sendParam.commitTxPriorityFee
         : sendParam.revealPriorityFee;
-    if (priorityFee) {
+    if (priorityFee?.amount) {
       return {
         priorityFee,
         result: txResult