--- a/packages/taler-wallet-core/src/pay-peer-push-debit.ts	2026-11-11 04:14:57.378485375 +0100
+++ b/packages/taler-wallet-core/src/pay-peer-push-debit.ts	2026-11-11 04:14:57.382485348 +0100
@@ -1475,6 +1475,10 @@
   const instructedAmount = Amounts.parseOrThrow(
     req.partialContractTerms.amount,
   );
+  // Same guard as checkPeerPushDebitV2: without it a zero amount reaches
+  // selectPeerCoinsInTx, which throws a plain Error and surfaces as
+  // WALLET_UNEXPECTED_EXCEPTION with a stack trace.
+  requirePositivePeerPushDebitAmount(instructedAmount);
   const currency = Amounts.currencyOf(instructedAmount);
 
   const requestedExpiration = req.partialContractTerms.purse_expiration;