diff --git a/src/gui/mainwindow.cpp b/src/gui/mainwindow.cpp
index e0f3cc117..b663dd34b 100644
--- a/src/gui/mainwindow.cpp
+++ b/src/gui/mainwindow.cpp
@@ -30,6 +30,7 @@
 
 #include <chrono>
 
+#include <QActionGroup>
 #include <QClipboard>
 #include <QCloseEvent>
 #include <QDebug>
@@ -876,36 +877,36 @@ void MainWindow::createKeyboardShortcuts()
     m_ui->actionOpen->setShortcut(QKeySequence::Open);
     m_ui->actionDelete->setShortcut(QKeySequence::Delete);
     m_ui->actionDelete->setShortcutContext(Qt::WidgetShortcut);  // nullify its effect: delete key event is handled by respective widgets, not here
-    m_ui->actionDownloadFromURL->setShortcut(Qt::CTRL + Qt::SHIFT + Qt::Key_O);
-    m_ui->actionExit->setShortcut(Qt::CTRL + Qt::Key_Q);
+    m_ui->actionDownloadFromURL->setShortcut(Qt::CTRL | Qt::SHIFT | Qt::Key_O);
+    m_ui->actionExit->setShortcut(Qt::CTRL | Qt::Key_Q);
 #ifdef Q_OS_MACOS
     m_ui->actionCloseWindow->setShortcut(QKeySequence::Close);
 #else
     m_ui->actionCloseWindow->setVisible(false);
 #endif
 
-    const auto *switchTransferShortcut = new QShortcut(Qt::ALT + Qt::Key_1, this);
+    const auto *switchTransferShortcut = new QShortcut((Qt::ALT | Qt::Key_1), this);
     connect(switchTransferShortcut, &QShortcut::activated, this, &MainWindow::displayTransferTab);
-    const auto *switchSearchShortcut = new QShortcut(Qt::ALT + Qt::Key_2, this);
+    const auto *switchSearchShortcut = new QShortcut((Qt::ALT | Qt::Key_2), this);
     connect(switchSearchShortcut, &QShortcut::activated, this, qOverload<>(&MainWindow::displaySearchTab));
-    const auto *switchRSSShortcut = new QShortcut(Qt::ALT + Qt::Key_3, this);
+    const auto *switchRSSShortcut = new QShortcut((Qt::ALT | Qt::Key_3), this);
     connect(switchRSSShortcut, &QShortcut::activated, this, qOverload<>(&MainWindow::displayRSSTab));
-    const auto *switchExecutionLogShortcut = new QShortcut(Qt::ALT + Qt::Key_4, this);
+    const auto *switchExecutionLogShortcut = new QShortcut((Qt::ALT | Qt::Key_4), this);
     connect(switchExecutionLogShortcut, &QShortcut::activated, this, &MainWindow::displayExecutionLogTab);
     const auto *switchSearchFilterShortcut = new QShortcut(QKeySequence::Find, m_transferListWidget);
     connect(switchSearchFilterShortcut, &QShortcut::activated, this, &MainWindow::focusSearchFilter);
 
     m_ui->actionDocumentation->setShortcut(QKeySequence::HelpContents);
-    m_ui->actionOptions->setShortcut(Qt::ALT + Qt::Key_O);
-    m_ui->actionStatistics->setShortcut(Qt::CTRL + Qt::Key_I);
-    m_ui->actionStart->setShortcut(Qt::CTRL + Qt::Key_S);
-    m_ui->actionStartAll->setShortcut(Qt::CTRL + Qt::SHIFT + Qt::Key_S);
-    m_ui->actionPause->setShortcut(Qt::CTRL + Qt::Key_P);
-    m_ui->actionPauseAll->setShortcut(Qt::CTRL + Qt::SHIFT + Qt::Key_P);
-    m_ui->actionBottomQueuePos->setShortcut(Qt::CTRL + Qt::SHIFT + Qt::Key_Minus);
-    m_ui->actionDecreaseQueuePos->setShortcut(Qt::CTRL + Qt::Key_Minus);
-    m_ui->actionIncreaseQueuePos->setShortcut(Qt::CTRL + Qt::Key_Plus);
-    m_ui->actionTopQueuePos->setShortcut(Qt::CTRL + Qt::SHIFT + Qt::Key_Plus);
+    m_ui->actionOptions->setShortcut(Qt::ALT | Qt::Key_O);
+    m_ui->actionStatistics->setShortcut(Qt::CTRL | Qt::Key_I);
+    m_ui->actionStart->setShortcut(Qt::CTRL | Qt::Key_S);
+    m_ui->actionStartAll->setShortcut(Qt::CTRL | Qt::SHIFT | Qt::Key_S);
+    m_ui->actionPause->setShortcut(Qt::CTRL | Qt::Key_P);
+    m_ui->actionPauseAll->setShortcut(Qt::CTRL | Qt::SHIFT | Qt::Key_P);
+    m_ui->actionBottomQueuePos->setShortcut(Qt::CTRL | Qt::SHIFT | Qt::Key_Minus);
+    m_ui->actionDecreaseQueuePos->setShortcut(Qt::CTRL | Qt::Key_Minus);
+    m_ui->actionIncreaseQueuePos->setShortcut(Qt::CTRL | Qt::Key_Plus);
+    m_ui->actionTopQueuePos->setShortcut(Qt::CTRL | Qt::SHIFT | Qt::Key_Plus);
 #ifdef Q_OS_MACOS
     m_ui->actionMinimize->setShortcut(Qt::CTRL + Qt::Key_M);
     addAction(m_ui->actionMinimize);
diff --git a/src/gui/torrentcontentmodelitem.cpp b/src/gui/torrentcontentmodelitem.cpp
index 34ebe498c..62731312a 100644
--- a/src/gui/torrentcontentmodelitem.cpp
+++ b/src/gui/torrentcontentmodelitem.cpp
@@ -142,7 +142,7 @@ QString TorrentContentModelItem::displayData(const int column) const
             const QString value = (avail >= 1)
                                   ? QString::fromLatin1("100")
                                   : Utils::String::fromDouble((avail * 100), 1);
-            return {value + C_THIN_SPACE + QLatin1Char('%')};
+            return (value + C_THIN_SPACE + QLatin1Char('%'));
         }
     default:
         Q_ASSERT(false);
diff --git a/src/gui/utils.cpp b/src/gui/utils.cpp
index 7bd1f5713..48c391cd0 100644
--- a/src/gui/utils.cpp
+++ b/src/gui/utils.cpp
@@ -35,7 +35,6 @@
 
 #include <QApplication>
 #include <QDesktopServices>
-#include <QDesktopWidget>
 #include <QFileInfo>
 #include <QIcon>
 #include <QPixmap>
@@ -49,6 +48,10 @@
 #include <QWidget>
 #include <QWindow>
 
+#if (QT_VERSION < QT_VERSION_CHECK(5, 14, 0)) && defined(Q_OS_WIN)
+#include <QDesktopWidget>
+#endif
+
 #include "base/utils/fs.h"
 #include "base/utils/version.h"