diff --git a/src/qt/paymentserver.h b/src/qt/paymentserver.h
--- a/src/qt/paymentserver.h
+++ b/src/qt/paymentserver.h
@@ -108,7 +108,7 @@
     void uiReady();
 
     // Submit Payment message to a merchant, get back PaymentACK:
-    void fetchPaymentACK(CWallet *wallet, SendCoinsRecipient recipient,
+    void fetchPaymentACK(CWallet *wallet, const SendCoinsRecipient &recipient,
                          QByteArray transaction);
 
     // Handle an incoming URI, URI with local file scheme or file
diff --git a/src/qt/paymentserver.cpp b/src/qt/paymentserver.cpp
--- a/src/qt/paymentserver.cpp
+++ b/src/qt/paymentserver.cpp
@@ -682,7 +682,7 @@
 }
 
 void PaymentServer::fetchPaymentACK(CWallet *wallet,
-                                    SendCoinsRecipient recipient,
+                                    const SendCoinsRecipient &recipient,
                                     QByteArray transaction) {
     const payments::PaymentDetails &details =
         recipient.paymentRequest.getDetails();
diff --git a/src/qt/test/paymentservertests.h b/src/qt/test/paymentservertests.h
--- a/src/qt/test/paymentservertests.h
+++ b/src/qt/test/paymentservertests.h
@@ -24,7 +24,7 @@
     Q_OBJECT
 
 public Q_SLOTS:
-    void getRecipient(SendCoinsRecipient r);
+    void getRecipient(const SendCoinsRecipient &r);
 
 public:
     SendCoinsRecipient recipient;
diff --git a/src/qt/test/paymentservertests.cpp b/src/qt/test/paymentservertests.cpp
--- a/src/qt/test/paymentservertests.cpp
+++ b/src/qt/test/paymentservertests.cpp
@@ -214,6 +214,6 @@
     delete server;
 }
 
-void RecipientCatcher::getRecipient(SendCoinsRecipient r) {
+void RecipientCatcher::getRecipient(const SendCoinsRecipient &r) {
     recipient = r;
 }