diff --git a/backend/src/graphql/resolver/TransactionLinkResolver.ts b/backend/src/graphql/resolver/TransactionLinkResolver.ts
index 8432ae9d5..f5341d383 100644
--- a/backend/src/graphql/resolver/TransactionLinkResolver.ts
+++ b/backend/src/graphql/resolver/TransactionLinkResolver.ts
@@ -637,7 +637,7 @@ export class TransactionLinkResolver {
         throw new Error(errmsg)
       }
       logger.debug('queryRedeemJwtLink... senderCom=', senderCom)
-      const verifiedJwtPayload = await verify(signedTransferPayload.handshakeID, signedTransferPayload.jwt, signedTransferPayload.publicKey) as SignedTransferPayloadType
+      const verifiedJwtPayload = await verify(signedTransferPayload.handshakeID, signedTransferPayload.jwt, senderCom.publicJwtKey!) as SignedTransferPayloadType
       logger.debug('queryRedeemJwtLink... verifiedJwtPayload=', verifiedJwtPayload)
       let verifiedRedeemJwtPayload: RedeemJwtPayloadType | null = null
       if (verifiedJwtPayload === null) {