diff --git a/src/solid/devices/backends/fstab/fstabdevice.h b/src/solid/devices/backends/fstab/fstabdevice.h
--- a/src/solid/devices/backends/fstab/fstabdevice.h
+++ b/src/solid/devices/backends/fstab/fstabdevice.h
@@ -51,7 +51,7 @@
 Q_SIGNALS:
     void mtabChanged(const QString &device);
 
-private Q_SLOTS:
+public Q_SLOTS:
     void onMtabChanged(const QString &device);
 
 private:
diff --git a/src/solid/devices/backends/fstab/fstabmanager.cpp b/src/solid/devices/backends/fstab/fstabmanager.cpp
--- a/src/solid/devices/backends/fstab/fstabmanager.cpp
+++ b/src/solid/devices/backends/fstab/fstabmanager.cpp
@@ -22,8 +22,8 @@
 
     m_deviceList = FstabHandling::deviceList();
 
-    connect(FstabWatcher::instance(), SIGNAL(fstabChanged()), this, SLOT(onFstabChanged()));
-    connect(FstabWatcher::instance(), SIGNAL(mtabChanged()), this, SLOT(onMtabChanged()));
+    connect(FstabWatcher::instance(), &FstabWatcher::fstabChanged, this, &FstabManager::onFstabChanged);
+    connect(FstabWatcher::instance(), &FstabWatcher::mtabChanged, this, &FstabManager::onMtabChanged);
 }
 
 QString FstabManager::udiPrefix() const
@@ -92,8 +92,8 @@
             return nullptr;
         }
 
-        QObject *device = new FstabDevice(udi);
-        connect(this, SIGNAL(mtabChanged(QString)), device, SLOT(onMtabChanged(QString)));
+        FstabDevice *device = new FstabDevice(udi);
+        connect(this, &FstabManager::mtabChanged, device, &FstabDevice::onMtabChanged);
         return device;
 
     }
diff --git a/src/solid/devices/backends/fstab/fstabwatcher.cpp b/src/solid/devices/backends/fstab/fstabwatcher.cpp
--- a/src/solid/devices/backends/fstab/fstabwatcher.cpp
+++ b/src/solid/devices/backends/fstab/fstabwatcher.cpp
@@ -28,23 +28,24 @@
     , m_fileSystemWatcher(new QFileSystemWatcher(this))
 {
     if (qApp) {
-        connect(qApp, SIGNAL(aboutToQuit()), this, SLOT(orphanFileSystemWatcher()));
+        connect(qApp, &QCoreApplication::aboutToQuit, this, &FstabWatcher::orphanFileSystemWatcher);
     }
 
     m_mtabFile = new QFile(s_mtabFile, this);
     if (m_mtabFile && m_mtabFile->symLinkTarget().startsWith("/proc/")
             && m_mtabFile->open(QIODevice::ReadOnly)) {
 
         m_mtabSocketNotifier = new QSocketNotifier(m_mtabFile->handle(),
                 QSocketNotifier::Exception, this);
-        connect(m_mtabSocketNotifier,
-                SIGNAL(activated(int)), this, SIGNAL(mtabChanged()));
+        connect(m_mtabSocketNotifier, &QSocketNotifier::activated,
+                this, &FstabWatcher::mtabChanged);
     } else {
         m_fileSystemWatcher->addPath(s_mtabFile);
     }
 
     m_fileSystemWatcher->addPath(s_fstabFile);
-    connect(m_fileSystemWatcher, SIGNAL(fileChanged(QString)), this, SLOT(onFileChanged(QString)));
+    connect(m_fileSystemWatcher, &QFileSystemWatcher::fileChanged,
+            this, &FstabWatcher::onFileChanged);
 }
 
 FstabWatcher::~FstabWatcher()