diff --git a/trade/src/main/java/bisq/trade/bisq_easy/protocol/messages/BisqEasyTakeOfferRequestHandler.java b/trade/src/main/java/bisq/trade/bisq_easy/protocol/messages/BisqEasyTakeOfferRequestHandler.java
index 1107e67fd9..9253a051f5 100644
--- a/trade/src/main/java/bisq/trade/bisq_easy/protocol/messages/BisqEasyTakeOfferRequestHandler.java
+++ b/trade/src/main/java/bisq/trade/bisq_easy/protocol/messages/BisqEasyTakeOfferRequestHandler.java
@@ -127,8 +127,8 @@ protected void verifyMessage(BisqEasyTakeOfferRequest message) {
         Optional<UserProfile> mediator = serviceProvider.getSupportService().getMediationRequestService()
                 .selectMediator(takersOffer.getMakersUserProfileId(), trade.getTaker().getNetworkId().getId());
         checkArgument(mediator.equals(takersContract.getMediator()), "Mediators do not match. " +
-                        "mediator={}, takersContract.getMediator()={}",
-                mediator, takersContract.getMediator());
+                "mediator=" + mediator + ", takersContract.getMediator()=" +
+                takersContract.getMediator());
 
         ContractSignatureData takersContractSignatureData = message.getContractSignatureData();
         try {