diff --git a/client/PublicRequestTypes.ts b/client/PublicRequestTypes.ts
index 554f9315..e48a5492 100644
--- a/client/PublicRequestTypes.ts
+++ b/client/PublicRequestTypes.ts
@@ -274,9 +274,9 @@ export interface PolygonHtlcCreationInstructions extends RelayRequest {
     type: 'USDC';
     /**
      * The sender's nonce in the token contract, required when calling the
-     * contract function `openWithApproval`.
+     * contract function `openWithPermit`.
      */
-    approval?: {
+    permit?: {
         tokenNonce: number,
     };
 }
diff --git a/src/lib/RequestTypes.ts b/src/lib/RequestTypes.ts
index 7fa425da..98516a56 100644
--- a/src/lib/RequestTypes.ts
+++ b/src/lib/RequestTypes.ts
@@ -199,7 +199,7 @@ export interface ParsedSetupSwapRequest extends ParsedSimpleRequest {
         refundAddress: string,
     } | ({
         type: SwapAsset.USDC,
-        approval?: {
+        permit?: {
             tokenNonce: number,
         },
     } & RelayRequest) | {
diff --git a/src/views/SetupSwap.vue b/src/views/SetupSwap.vue
index 949bffbd..229f8162 100644
--- a/src/views/SetupSwap.vue
+++ b/src/views/SetupSwap.vue
@@ -196,7 +196,7 @@ export default class SetupSwap extends BitcoinSyncBaseView {
                 keyPath: signer.path,
                 request: this.request.fund.request,
                 relayData: this.request.fund.relayData,
-                approval: this.request.fund.approval,
+                permit: this.request.fund.permit,
             };
         }