diff --git a/packages/taler-util/src/wallet-types.ts b/packages/taler-util/src/wallet-types.ts
index b08b02ca3..de84677ac 100644
--- a/packages/taler-util/src/wallet-types.ts
+++ b/packages/taler-util/src/wallet-types.ts
@@ -465,7 +465,7 @@ export interface PayMerchantInsufficientBalanceDetails {
 
   /**
    * If the payment would succeed without fees
-   * (i.e. balanceMechantWireable >= amountRequested),
+   * (i.e. balanceMerchantDepositable >= amountRequested),
    * this field contains an estimate of the amount that would additionally
    * be required to cover the fees.
    *