diff --git a/src/wallet/monero_wallet_model.cpp b/src/wallet/monero_wallet_model.cpp
index c2f832d..76b0567 100644
--- a/src/wallet/monero_wallet_model.cpp
+++ b/src/wallet/monero_wallet_model.cpp
@@ -622,7 +622,7 @@ namespace monero {
     if (!m_destinations.empty()) node.add_child("destinations", monero_utils::to_property_tree(m_destinations));
     if (m_payment_id != boost::none) node.put("paymentId", *m_payment_id);
     if (m_priority != boost::none) node.put("priority", *m_priority);
-    if (m_mixin != boost::none) node.put("m_mixin", *m_mixin);
+    if (m_mixin != boost::none) node.put("mixin", *m_mixin);
     if (m_ring_size != boost::none) node.put("ringSize", *m_ring_size);
     if (m_account_index != boost::none) node.put("accountIndex", *m_account_index);
     if (!m_subaddress_indices.empty()) node.add_child("subaddressIndices", monero_utils::to_property_tree(m_subaddress_indices));