diff --git a/src/qt/addressbookpage.cpp b/src/qt/addressbookpage.cpp
index 8a74a47f58..e20358c70e 100644
--- a/src/qt/addressbookpage.cpp
+++ b/src/qt/addressbookpage.cpp
@@ -27,7 +27,7 @@ AddressBookPage::AddressBookPage(Mode mode, Tabs tab, QWidget *parent) :
 {
     ui->setupUi(this);
 
-#ifdef Q_WS_MAC // Icons on push buttons are very uncommon on Mac
+#ifdef Q_OS_MAC // Icons on push buttons are very uncommon on Mac
     ui->newAddressButton->setIcon(QIcon());
     ui->copyToClipboard->setIcon(QIcon());
     ui->deleteButton->setIcon(QIcon());
diff --git a/src/qt/bitcoingui.cpp b/src/qt/bitcoingui.cpp
index eeb01d7ec9..19a6a65a1b 100644
--- a/src/qt/bitcoingui.cpp
+++ b/src/qt/bitcoingui.cpp
@@ -26,7 +26,7 @@
 #include "guiutil.h"
 #include "rpcconsole.h"
 
-#ifdef Q_WS_MAC
+#ifdef Q_OS_MAC
 #include "macdockiconhandler.h"
 #endif
 
@@ -70,7 +70,7 @@ BitcoinGUI::BitcoinGUI(QWidget *parent):
 {
     resize(850, 550);
     setWindowTitle(tr("Bitcoin") + " - " + tr("Wallet"));
-#ifndef Q_WS_MAC
+#ifndef Q_OS_MAC
     qApp->setWindowIcon(QIcon(":icons/bitcoin"));
     setWindowIcon(QIcon(":icons/bitcoin"));
 #else
@@ -183,7 +183,7 @@ BitcoinGUI::~BitcoinGUI()
 {
     if(trayIcon) // Hide tray icon, as deleting will let it linger until quit (on Ubuntu)
         trayIcon->hide();
-#ifdef Q_WS_MAC
+#ifdef Q_OS_MAC
     delete appMenuBar;
 #endif
 }
@@ -276,7 +276,7 @@ void BitcoinGUI::createActions()
 
 void BitcoinGUI::createMenuBar()
 {
-#ifdef Q_WS_MAC
+#ifdef Q_OS_MAC
     // Create a decoupled menu bar on Mac which stays even if the window is closed
     appMenuBar = new QMenuBar();
 #else
@@ -330,7 +330,7 @@ void BitcoinGUI::setClientModel(ClientModel *clientModel)
         if(clientModel->isTestNet())
         {
             setWindowTitle(windowTitle() + QString(" ") + tr("[testnet]"));
-#ifndef Q_WS_MAC
+#ifndef Q_OS_MAC
             qApp->setWindowIcon(QIcon(":icons/bitcoin_testnet"));
             setWindowIcon(QIcon(":icons/bitcoin_testnet"));
 #else
@@ -394,7 +394,7 @@ void BitcoinGUI::setWalletModel(WalletModel *walletModel)
 void BitcoinGUI::createTrayIcon()
 {
     QMenu *trayIconMenu;
-#ifndef Q_WS_MAC
+#ifndef Q_OS_MAC
     trayIcon = new QSystemTrayIcon(this);
     trayIconMenu = new QMenu(this);
     trayIcon->setContextMenu(trayIconMenu);
@@ -420,7 +420,7 @@ void BitcoinGUI::createTrayIcon()
     trayIconMenu->addSeparator();
     trayIconMenu->addAction(optionsAction);
     trayIconMenu->addAction(openRPCConsoleAction);
-#ifndef Q_WS_MAC // This is built-in on Mac
+#ifndef Q_OS_MAC // This is built-in on Mac
     trayIconMenu->addSeparator();
     trayIconMenu->addAction(quitAction);
 #endif
@@ -428,7 +428,7 @@ void BitcoinGUI::createTrayIcon()
     notificator = new Notificator(qApp->applicationName(), trayIcon);
 }
 
-#ifndef Q_WS_MAC
+#ifndef Q_OS_MAC
 void BitcoinGUI::trayIconActivated(QSystemTrayIcon::ActivationReason reason)
 {
     if(reason == QSystemTrayIcon::Trigger)
@@ -589,7 +589,7 @@ void BitcoinGUI::error(const QString &title, const QString &message, bool modal)
 void BitcoinGUI::changeEvent(QEvent *e)
 {
     QMainWindow::changeEvent(e);
-#ifndef Q_WS_MAC // Ignored on Mac
+#ifndef Q_OS_MAC // Ignored on Mac
     if(e->type() == QEvent::WindowStateChange)
     {
         if(clientModel && clientModel->getOptionsModel()->getMinimizeToTray())
@@ -609,7 +609,7 @@ void BitcoinGUI::closeEvent(QCloseEvent *event)
 {
     if(clientModel)
     {
-#ifndef Q_WS_MAC // Ignored on Mac
+#ifndef Q_OS_MAC // Ignored on Mac
         if(!clientModel->getOptionsModel()->getMinimizeToTray() &&
            !clientModel->getOptionsModel()->getMinimizeOnClose())
         {
diff --git a/src/qt/bitcoingui.h b/src/qt/bitcoingui.h
index 7f2022c28b..bb707da1ba 100644
--- a/src/qt/bitcoingui.h
+++ b/src/qt/bitcoingui.h
@@ -152,7 +152,7 @@ private slots:
     void optionsClicked();
     /** Show about dialog */
     void aboutClicked();
-#ifndef Q_WS_MAC
+#ifndef Q_OS_MAC
     /** Handle tray icon clicked */
     void trayIconActivated(QSystemTrayIcon::ActivationReason reason);
 #endif
diff --git a/src/qt/notificator.cpp b/src/qt/notificator.cpp
index c1c177dbfe..8028190b82 100644
--- a/src/qt/notificator.cpp
+++ b/src/qt/notificator.cpp
@@ -16,7 +16,7 @@
 #include <stdint.h>
 #endif
 
-#ifdef Q_WS_MAC
+#ifdef Q_OS_MAC
 #include <ApplicationServices/ApplicationServices.h>
 extern bool qt_mac_execute_apple_script(const QString &script, AEDesc *ret);
 #endif
@@ -46,7 +46,7 @@ Notificator::Notificator(const QString &programName, QSystemTrayIcon *trayicon,
         mode = Freedesktop;
     }
 #endif
-#ifdef Q_WS_MAC
+#ifdef Q_OS_MAC
     // Check if Growl is installed (based on Qt's tray icon implementation)
     CFURLRef cfurl;
     OSStatus status = LSGetApplicationForInfo(kLSUnknownType, kLSUnknownCreator, CFSTR("growlTicket"), kLSRolesAll, 0, &cfurl);
@@ -225,7 +225,7 @@ void Notificator::notifySystray(Class cls, const QString &title, const QString &
 }
 
 // Based on Qt's tray icon implementation
-#ifdef Q_WS_MAC
+#ifdef Q_OS_MAC
 void Notificator::notifyGrowl(Class cls, const QString &title, const QString &text, const QIcon &icon)
 {
     const QString script(
@@ -285,7 +285,7 @@ void Notificator::notify(Class cls, const QString &title, const QString &text, c
     case QSystemTray:
         notifySystray(cls, title, text, icon, millisTimeout);
         break;
-#ifdef Q_WS_MAC
+#ifdef Q_OS_MAC
     case Growl12:
     case Growl13:
         notifyGrowl(cls, title, text, icon);
diff --git a/src/qt/notificator.h b/src/qt/notificator.h
index 8abc0b2ec2..abb47109b3 100644
--- a/src/qt/notificator.h
+++ b/src/qt/notificator.h
@@ -61,7 +61,7 @@ private:
     void notifyDBus(Class cls, const QString &title, const QString &text, const QIcon &icon, int millisTimeout);
 #endif
     void notifySystray(Class cls, const QString &title, const QString &text, const QIcon &icon, int millisTimeout);
-#ifdef Q_WS_MAC
+#ifdef Q_OS_MAC
     void notifyGrowl(Class cls, const QString &title, const QString &text, const QIcon &icon);
 #endif
 };
diff --git a/src/qt/optionsdialog.cpp b/src/qt/optionsdialog.cpp
index f8d1fe56fb..8025126c25 100644
--- a/src/qt/optionsdialog.cpp
+++ b/src/qt/optionsdialog.cpp
@@ -46,7 +46,7 @@ OptionsDialog::OptionsDialog(QWidget *parent) :
     ui->proxyIp->installEventFilter(this);
 
     /* Window elements init */
-#ifdef Q_WS_MAC
+#ifdef Q_OS_MAC
     ui->tabWindow->setVisible(false);
 #endif
 
diff --git a/src/qt/rpcconsole.cpp b/src/qt/rpcconsole.cpp
index 8a6dafcf74..2b8a0c049b 100644
--- a/src/qt/rpcconsole.cpp
+++ b/src/qt/rpcconsole.cpp
@@ -192,7 +192,7 @@ RPCConsole::RPCConsole(QWidget *parent) :
 {
     ui->setupUi(this);
 
-#ifndef Q_WS_MAC
+#ifndef Q_OS_MAC
     ui->openDebugLogfileButton->setIcon(QIcon(":/icons/export"));
     ui->showCLOptionsButton->setIcon(QIcon(":/icons/options"));
 #endif
diff --git a/src/qt/sendcoinsdialog.cpp b/src/qt/sendcoinsdialog.cpp
index 789681ad90..ca2c615333 100644
--- a/src/qt/sendcoinsdialog.cpp
+++ b/src/qt/sendcoinsdialog.cpp
@@ -21,7 +21,7 @@ SendCoinsDialog::SendCoinsDialog(QWidget *parent) :
 {
     ui->setupUi(this);
 
-#ifdef Q_WS_MAC // Icons on push buttons are very uncommon on Mac
+#ifdef Q_OS_MAC // Icons on push buttons are very uncommon on Mac
     ui->addButton->setIcon(QIcon());
     ui->clearButton->setIcon(QIcon());
     ui->sendButton->setIcon(QIcon());
diff --git a/src/qt/sendcoinsentry.cpp b/src/qt/sendcoinsentry.cpp
index 71891e79ca..c4d84c388c 100644
--- a/src/qt/sendcoinsentry.cpp
+++ b/src/qt/sendcoinsentry.cpp
@@ -17,7 +17,7 @@ SendCoinsEntry::SendCoinsEntry(QWidget *parent) :
 {
     ui->setupUi(this);
 
-#ifdef Q_WS_MAC
+#ifdef Q_OS_MAC
     ui->payToLayout->setSpacing(4);
 #endif
 #if QT_VERSION >= 0x040700
diff --git a/src/qt/transactionview.cpp b/src/qt/transactionview.cpp
index ed2a70a350..7acf5deaa3 100644
--- a/src/qt/transactionview.cpp
+++ b/src/qt/transactionview.cpp
@@ -38,7 +38,7 @@ TransactionView::TransactionView(QWidget *parent) :
 
     QHBoxLayout *hlayout = new QHBoxLayout();
     hlayout->setContentsMargins(0,0,0,0);
-#ifdef Q_WS_MAC
+#ifdef Q_OS_MAC
     hlayout->setSpacing(5);
     hlayout->addSpacing(26);
 #else
@@ -47,7 +47,7 @@ TransactionView::TransactionView(QWidget *parent) :
 #endif
 
     dateWidget = new QComboBox(this);
-#ifdef Q_WS_MAC
+#ifdef Q_OS_MAC
     dateWidget->setFixedWidth(121);
 #else
     dateWidget->setFixedWidth(120);
@@ -62,7 +62,7 @@ TransactionView::TransactionView(QWidget *parent) :
     hlayout->addWidget(dateWidget);
 
     typeWidget = new QComboBox(this);
-#ifdef Q_WS_MAC
+#ifdef Q_OS_MAC
     typeWidget->setFixedWidth(121);
 #else
     typeWidget->setFixedWidth(120);
@@ -91,7 +91,7 @@ TransactionView::TransactionView(QWidget *parent) :
     /* Do not move this to the XML file, Qt before 4.7 will choke on it */
     amountWidget->setPlaceholderText(tr("Min amount"));
 #endif
-#ifdef Q_WS_MAC
+#ifdef Q_OS_MAC
     amountWidget->setFixedWidth(97);
 #else
     amountWidget->setFixedWidth(100);
@@ -110,7 +110,7 @@ TransactionView::TransactionView(QWidget *parent) :
     vlayout->setSpacing(0);
     int width = view->verticalScrollBar()->sizeHint().width();
     // Cover scroll bar width with spacing
-#ifdef Q_WS_MAC
+#ifdef Q_OS_MAC
     hlayout->addSpacing(width+2);
 #else
     hlayout->addSpacing(width);