diff --git a/react/src/swapper/helpers.ts b/react/src/swapper/helpers.ts
index ee444e9..f83a461 100644
--- a/react/src/swapper/helpers.ts
+++ b/react/src/swapper/helpers.ts
@@ -32,8 +32,18 @@ export async function getEvmGasParametersForContract(
   console.info(`getEvmGasParametersForContract... chainId: ${chainId}`);
 
   if (EVM_EIP1559_CHAIN_IDS.indexOf(chainId)) {
+    console.info(
+      `eip1559? chainId: ${chainId}, eip1559 chains... ${JSON.stringify(
+        EVM_EIP1559_CHAIN_IDS
+      )}`
+    );
     return CROSSCHAINSWAP_GAS_PARAMETERS_EIP1559;
   }
+  console.info(
+    `not eip1559 chainId: ${chainId}, eip1559 chains... ${JSON.stringify(
+      EVM_EIP1559_CHAIN_IDS
+    )}`
+  );
   return CROSSCHAINSWAP_GAS_PARAMETERS_EVM;
 }