diff --git a/src/qt/bitcoingui.cpp b/src/qt/bitcoingui.cpp
index bd80e42d..d1e7bb94 100644
--- a/src/qt/bitcoingui.cpp
+++ b/src/qt/bitcoingui.cpp
@@ -85,7 +85,7 @@ BitcoinGUI::BitcoinGUI(QWidget *parent):
     QVBoxLayout *vbox = new QVBoxLayout();
 
     transactionView = new TransactionView(this);
-    connect(transactionView, SIGNAL(doubleClicked(const QModelIndex&)), transactionView, SLOT(showDetails()));
+    connect(transactionView, SIGNAL(doubleClicked(QModelIndex)), transactionView, SLOT(showDetails()));
     vbox->addWidget(transactionView);
 
     transactionsPage = new QWidget(this);
@@ -252,8 +252,8 @@ void BitcoinGUI::setWalletModel(WalletModel *walletModel)
     sendCoinsPage->setModel(walletModel);
 
     // Balloon popup for new transaction
-    connect(walletModel->getTransactionTableModel(), SIGNAL(rowsInserted(const QModelIndex &, int, int)),
-            this, SLOT(incomingTransaction(const QModelIndex &, int, int)));
+    connect(walletModel->getTransactionTableModel(), SIGNAL(rowsInserted(QModelIndex,int,int)),
+            this, SLOT(incomingTransaction(QModelIndex,int,int)));
 }
 
 void BitcoinGUI::createTrayIcon()
diff --git a/src/qt/transactionview.cpp b/src/qt/transactionview.cpp
index f88b6fc1..9c38934a 100644
--- a/src/qt/transactionview.cpp
+++ b/src/qt/transactionview.cpp
@@ -120,15 +120,15 @@ TransactionView::TransactionView(QWidget *parent) :
     // Connect actions
     connect(dateWidget, SIGNAL(activated(int)), this, SLOT(chooseDate(int)));
     connect(typeWidget, SIGNAL(activated(int)), this, SLOT(chooseType(int)));
-    connect(addressWidget, SIGNAL(textChanged(const QString&)), this, SLOT(changedPrefix(const QString&)));
-    connect(amountWidget, SIGNAL(textChanged(const QString&)), this, SLOT(changedAmount(const QString&)));
+    connect(addressWidget, SIGNAL(textChanged(QString)), this, SLOT(changedPrefix(QString)));
+    connect(amountWidget, SIGNAL(textChanged(QString)), this, SLOT(changedAmount(QString)));
 
-    connect(view, SIGNAL(doubleClicked(const QModelIndex&)), this, SIGNAL(doubleClicked(const QModelIndex&)));
+    connect(view, SIGNAL(doubleClicked(QModelIndex)), this, SIGNAL(doubleClicked(QModelIndex)));
 
     connect(view,
-            SIGNAL(customContextMenuRequested(const QPoint &)),
+            SIGNAL(customContextMenuRequested(QPoint)),
             this,
-            SLOT(contextualMenu(const QPoint &)));
+            SLOT(contextualMenu(QPoint)));
 
     connect(copyAddressAction, SIGNAL(triggered()), this, SLOT(copyAddress()));
     connect(copyLabelAction, SIGNAL(triggered()), this, SLOT(copyLabel()));