diff --git a/include/IWalletLegacy.h b/include/IWalletLegacy.h
index 4757231..bb4bab8 100644
--- a/include/IWalletLegacy.h
+++ b/include/IWalletLegacy.h
@@ -113,8 +113,8 @@ class IWalletLegacy {
 
   virtual TransactionId sendTransaction(const WalletLegacyTransfer& transfer, uint64_t fee, const std::string& extra = "", uint64_t mixIn = 0, uint64_t unlockTimestamp = 0) = 0;
   virtual TransactionId sendTransaction(const std::vector<WalletLegacyTransfer>& transfers, uint64_t fee, const std::string& extra = "", uint64_t mixIn = 0, uint64_t unlockTimestamp = 0) = 0;
-  virtual TransactionId sendDustTransaction(const WalletLegacyTransfer& transfer, uint64_t fee, const std::string& extra = "", uint64_t mixIn = 0, uint64_t unlockTimestamp = 0) = 0;
-  virtual TransactionId sendDustTransaction(const std::vector<WalletLegacyTransfer>& transfers, uint64_t fee, const std::string& extra = "", uint64_t mixIn = 0, uint64_t unlockTimestamp = 0) = 0;
+  virtual TransactionId sendDustTransaction(const WalletLegacyTransfer& transfer, uint64_t fee, const std::string& extra = "", uint64_t mixIn = 1, uint64_t unlockTimestamp = 0) = 0;
+  virtual TransactionId sendDustTransaction(const std::vector<WalletLegacyTransfer>& transfers, uint64_t fee, const std::string& extra = "", uint64_t mixIn = 1, uint64_t unlockTimestamp = 0) = 0;
   virtual std::error_code cancelTransaction(size_t transferId) = 0;
 
   virtual void getAccountKeys(AccountKeys& keys) = 0;
diff --git a/src/WalletLegacy/WalletLegacy.h b/src/WalletLegacy/WalletLegacy.h
index bbdf5bb..3d3699b 100644
--- a/src/WalletLegacy/WalletLegacy.h
+++ b/src/WalletLegacy/WalletLegacy.h
@@ -98,8 +98,8 @@ class WalletLegacy :
 
   virtual TransactionId sendTransaction(const WalletLegacyTransfer& transfer, uint64_t fee, const std::string& extra = "", uint64_t mixIn = 0, uint64_t unlockTimestamp = 0) override;
   virtual TransactionId sendTransaction(const std::vector<WalletLegacyTransfer>& transfers, uint64_t fee, const std::string& extra = "", uint64_t mixIn = 0, uint64_t unlockTimestamp = 0) override;
-  virtual TransactionId sendDustTransaction(const WalletLegacyTransfer& transfer, uint64_t fee, const std::string& extra = "", uint64_t mixIn = 0, uint64_t unlockTimestamp = 0) override;
-  virtual TransactionId sendDustTransaction(const std::vector<WalletLegacyTransfer>& transfers, uint64_t fee, const std::string& extra = "", uint64_t mixIn = 0, uint64_t unlockTimestamp = 0) override;
+  virtual TransactionId sendDustTransaction(const WalletLegacyTransfer& transfer, uint64_t fee, const std::string& extra = "", uint64_t mixIn = 1, uint64_t unlockTimestamp = 0) override;
+  virtual TransactionId sendDustTransaction(const std::vector<WalletLegacyTransfer>& transfers, uint64_t fee, const std::string& extra = "", uint64_t mixIn = 1, uint64_t unlockTimestamp = 0) override;
   virtual std::error_code cancelTransaction(size_t transactionId) override;
 
   virtual void getAccountKeys(AccountKeys& keys) override;
diff --git a/src/WalletLegacy/WalletTransactionSender.cpp b/src/WalletLegacy/WalletTransactionSender.cpp
index 7755f9b..fdb13a2 100644
--- a/src/WalletLegacy/WalletTransactionSender.cpp
+++ b/src/WalletLegacy/WalletTransactionSender.cpp
@@ -114,7 +114,7 @@ std::shared_ptr<WalletRequest> WalletTransactionSender::makeSendRequest(Transact
 
   std::shared_ptr<SendTransactionContext> context = std::make_shared<SendTransactionContext>();
 
-  context->foundMoney = selectTransfersToSend(neededMoney, 0 == mixIn, m_currency.defaultDustThreshold(), context->selectedTransfers);
+  context->foundMoney = selectTransfersToSend(neededMoney, 1 == mixIn, m_currency.defaultDustThreshold(), context->selectedTransfers);
   throwIf(context->foundMoney < neededMoney, error::WRONG_AMOUNT);
 
   transactionId = m_transactionsCache.addNewTransaction(neededMoney, fee, extra, transfers, unlockTimestamp);
diff --git a/src/WalletLegacy/WalletTransactionSender.h b/src/WalletLegacy/WalletTransactionSender.h
index 690e3ce..c8f5ebd 100644
--- a/src/WalletLegacy/WalletTransactionSender.h
+++ b/src/WalletLegacy/WalletTransactionSender.h
@@ -41,7 +41,7 @@ class WalletTransactionSender
     const std::vector<WalletLegacyTransfer>& transfers, uint64_t fee, const std::string& extra = "", uint64_t mixIn = 0, uint64_t unlockTimestamp = 0);
 
   std::shared_ptr<WalletRequest> makeSendDustRequest(TransactionId& transactionId, std::deque<std::shared_ptr<WalletLegacyEvent>>& events,
-	  const std::vector<WalletLegacyTransfer>& transfers, uint64_t fee, const std::string& extra = "", uint64_t mixIn = 0, uint64_t unlockTimestamp = 0);
+	  const std::vector<WalletLegacyTransfer>& transfers, uint64_t fee, const std::string& extra = "", uint64_t mixIn = 1, uint64_t unlockTimestamp = 0);
 
 private:
   std::shared_ptr<WalletRequest> makeGetRandomOutsRequest(std::shared_ptr<SendTransactionContext> context);