diff --git a/src/CryptoNoteWrapper/WalletGreenWorker.cpp b/src/CryptoNoteWrapper/WalletGreenWorker.cpp
index 2ad9847..d861bc7 100644
--- a/src/CryptoNoteWrapper/WalletGreenWorker.cpp
+++ b/src/CryptoNoteWrapper/WalletGreenWorker.cpp
@@ -615,9 +615,10 @@ QString WalletGreenWorker::getTransactionProof(Crypto::Hash& _txid, CryptoNote::
   SemaphoreLocker locker(m_walletSemaphore);
   std::string tx_proof;
   bool r;
-  Crypto::SecretKey txKey = m_wallet->getTransactionSecretKey(_txid);
-  m_dispatcher->remoteSpawn([this, _txid, _address, txKey, &tx_proof, &r]() {
+
+  m_dispatcher->remoteSpawn([this, &_txid, _address, &tx_proof, &r]() {
     SemaphoreUnlocker unlocker(m_walletSemaphore);
+    Crypto::SecretKey txKey = m_wallet->getTransactionSecretKey(_txid);
     r = m_wallet->getTransactionProof(_txid, _address, txKey, tx_proof);
   });