diff --git a/package.json b/package.json
index b24a7a6..12affa6 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tornado/tornado-oracles",
-  "version": "1.2.0",
+  "version": "1.2.1",
   "description": "Gas oracle for Tornado-specific transactions",
   "main": "./lib/index.js",
   "types": "./lib/index.d.ts",
diff --git a/src/feeOracle.ts b/src/feeOracle.ts
index 20bbcaf..2dfa716 100644
--- a/src/feeOracle.ts
+++ b/src/feeOracle.ts
@@ -138,7 +138,7 @@ export abstract class TornadoFeeOracle implements ITornadoFeeOracle {
    * @param {AvailableTokenSymbols | Uppercase<AvailableTokenSymbols>} currency Currency symbol
    * @param {number | string } amount Withdrawal amount in selected currency
    * @param {number | string } decimals Token (currency) decimals
-   * @param {BigNumberish} [refund=0] Refund in ETH, if withdrawed other tokens on Mainnet (not ETH)
+   * @param {BigNumberish} [refundInEth=0] Refund in ETH, if withdrawed other tokens on Mainnet (not ETH)
    * @param {BigNumberish} [tokenPriceInEth] If withdrawing other token on Mainnet or Goerli, need to provide token price in ETH (in WEI)
    * @returns {Promise<string>} Fee in WEI (hexed string)
    */
diff --git a/src/types.ts b/src/types.ts
index fe707a1..e5ace0a 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -50,7 +50,7 @@ export interface ITornadoFeeOracle {
     currency: AvailableTokenSymbols,
     amount: string,
     decimals: number,
-    refund: BigNumberish,
+    refundInEth: BigNumberish,
     tokenPriceInEth?: BigNumberish,
   ) => Promise<string>;
 }