diff --git a/packages/asset-swapper/CHANGELOG.json b/packages/asset-swapper/CHANGELOG.json
index 6ab6da141e..efde233290 100644
--- a/packages/asset-swapper/CHANGELOG.json
+++ b/packages/asset-swapper/CHANGELOG.json
@@ -25,7 +25,11 @@
             {
                 "note": "Add `maxFallbackSlippage` option.",
                 "pr": 2513
-            }
+            },
+            {
+                "note": "Fix fee schedule not being scaled by gas price.",
+                "pr": 2522
+            },
         ]
     },
     {
diff --git a/packages/asset-swapper/src/utils/swap_quote_calculator.ts b/packages/asset-swapper/src/utils/swap_quote_calculator.ts
index 149066ab4c..8f08cc1454 100644
--- a/packages/asset-swapper/src/utils/swap_quote_calculator.ts
+++ b/packages/asset-swapper/src/utils/swap_quote_calculator.ts
@@ -20,7 +20,7 @@ import {
 import { fillableAmountsUtils } from './fillable_amounts_utils';
 import { MarketOperationUtils } from './market_operation_utils';
 import { convertNativeOrderToFullyFillableOptimizedOrders } from './market_operation_utils/orders';
-import { ERC20BridgeSource, OptimizedMarketOrder } from './market_operation_utils/types';
+import { ERC20BridgeSource, GetMarketOrdersOpts, OptimizedMarketOrder } from './market_operation_utils/types';
 import { ProtocolFeeUtils } from './protocol_fee_utils';
 import {
     isOrderTakerFeePayableWithMakerAsset,
@@ -132,9 +132,9 @@ export class SwapQuoteCalculator {
 
         {
             // Scale fees by gas price.
-            const _opts = {
+            const _opts: GetMarketOrdersOpts = {
                 ...opts,
-                fees: _.mapValues(opts.feeSchedule, v => v.times(gasPrice)),
+                feeSchedule: _.mapValues(opts.feeSchedule, v => v.times(gasPrice)),
             };
 
             const firstOrderMakerAssetData = !!prunedOrders[0]