diff --git a/include/FileBrowser.h b/include/FileBrowser.h
index 1565017d1..7e0482ce3 100644
--- a/include/FileBrowser.h
+++ b/include/FileBrowser.h
@@ -131,11 +131,11 @@ public:
 
 	inline QString fullName( QString path = QString() )
 	{
-		if( path == QString() )
+		if( path.isEmpty() )
 		{
 			path = m_directories[0];
 		}
-		if( path != QString() )
+		if( ! path.isEmpty() )
 		{
 			path += QDir::separator();
 		}
diff --git a/plugins/patman/patman.cpp b/plugins/patman/patman.cpp
index a628fb984..6ab7adce7 100644
--- a/plugins/patman/patman.cpp
+++ b/plugins/patman/patman.cpp
@@ -78,7 +78,6 @@ PLUGIN_EXPORT Plugin * lmms_plugin_main( Model *, void * _data )
 
 patmanInstrument::patmanInstrument( InstrumentTrack * _instrument_track ) :
 	Instrument( _instrument_track, &patman_plugin_descriptor ),
-	m_patchFile( QString() ),
 	m_loopedModel( true, this ),
 	m_tunedModel( true, this )
 {
diff --git a/src/core/Track.cpp b/src/core/Track.cpp
index 36d649e77..9ceff8f44 100644
--- a/src/core/Track.cpp
+++ b/src/core/Track.cpp
@@ -95,7 +95,6 @@ TextFloat * TrackContentObjectView::s_textFloat = NULL;
 TrackContentObject::TrackContentObject( Track * track ) :
 	Model( track ),
 	m_track( track ),
-	m_name( QString() ),
 	m_startPosition(),
 	m_length(),
 	m_mutedModel( false, this, tr( "Mute" ) ),
diff --git a/src/gui/AutomatableModelView.cpp b/src/gui/AutomatableModelView.cpp
index cdb1a5a04..039c75c99 100644
--- a/src/gui/AutomatableModelView.cpp
+++ b/src/gui/AutomatableModelView.cpp
@@ -42,9 +42,7 @@
 static float floatFromClipboard(bool* ok=nullptr);
 
 AutomatableModelView::AutomatableModelView( ::Model* model, QWidget* _this ) :
-	ModelView( model, _this ),
-	m_description( QString() ),
-	m_unit( QString() )
+	ModelView( model, _this )
 {
 	widget()->setAcceptDrops( true );
 	widget()->setCursor( QCursor( embed::getIconPixmap( "hand" ), 3, 3 ) );
diff --git a/src/gui/SetupDialog.cpp b/src/gui/SetupDialog.cpp
index 555969fb3..84c76128d 100644
--- a/src/gui/SetupDialog.cpp
+++ b/src/gui/SetupDialog.cpp
@@ -1269,7 +1269,7 @@ void SetupDialog::openWorkingDir()
 {
 	QString new_dir = FileDialog::getExistingDirectory( this,
 					tr( "Choose LMMS working directory" ), m_workingDir );
-	if( new_dir != QString() )
+	if( ! new_dir.isEmpty() )
 	{
 		m_wdLineEdit->setText( new_dir );
 	}
@@ -1280,7 +1280,7 @@ void SetupDialog::openGIGDir()
 	QString new_dir = FileDialog::getExistingDirectory( this,
 				tr( "Choose your GIG directory" ),
 							m_gigDir );
-	if( new_dir != QString() )
+	if( ! new_dir.isEmpty() )
 	{
 		m_gigLineEdit->setText( new_dir );
 	}
@@ -1291,7 +1291,7 @@ void SetupDialog::openSF2Dir()
 	QString new_dir = FileDialog::getExistingDirectory( this,
 				tr( "Choose your SF2 directory" ),
 							m_sf2Dir );
-	if( new_dir != QString() )
+	if( ! new_dir.isEmpty() )
 	{
 		m_sf2LineEdit->setText( new_dir );
 	}
@@ -1313,7 +1313,7 @@ void SetupDialog::openVSTDir()
 	QString new_dir = FileDialog::getExistingDirectory( this,
 				tr( "Choose your VST-plugin directory" ),
 							m_vstDir );
-	if( new_dir != QString() )
+	if( ! new_dir.isEmpty() )
 	{
 		m_vdLineEdit->setText( new_dir );
 	}
@@ -1345,7 +1345,7 @@ void SetupDialog::openArtworkDir()
 	QString new_dir = FileDialog::getExistingDirectory( this,
 				tr( "Choose artwork-theme directory" ),
 							m_artworkDir );
-	if( new_dir != QString() )
+	if( ! new_dir.isEmpty() )
 	{
 		m_adLineEdit->setText( new_dir );
 	}
@@ -1367,7 +1367,7 @@ void SetupDialog::openLADSPADir()
 	QString new_dir = FileDialog::getExistingDirectory( this,
 				tr( "Choose LADSPA plugin directory" ),
 							m_ladDir );
-	if( new_dir != QString() )
+	if( ! new_dir.isEmpty() )
 	{
 		if( m_ladLineEdit->text() == "" )
 		{
@@ -1389,7 +1389,7 @@ void SetupDialog::openSTKDir()
 	QString new_dir = FileDialog::getExistingDirectory( this,
 				tr( "Choose STK rawwave directory" ),
 							m_stkDir );
-	if( new_dir != QString() )
+	if( ! new_dir.isEmpty() )
 	{
 		m_stkLineEdit->setText( new_dir );
 	}
@@ -1406,7 +1406,7 @@ void SetupDialog::openDefaultSoundfont()
 				tr( "Choose default SoundFont" ), m_defaultSoundfont, 
 				"SoundFont2 Files (*.sf2)" );
 	
-	if( new_file != QString() )
+	if( ! new_file.isEmpty() )
 	{
 		m_sfLineEdit->setText( new_file );
 	}
@@ -1439,7 +1439,7 @@ void SetupDialog::openBackgroundArtwork()
 			tr( "Choose background artwork" ), dir, 
 			"Image Files (" + fileTypes + ")" );
 	
-	if( new_file != QString() )
+	if( ! new_file.isEmpty() )
 	{
 		m_baLineEdit->setText( new_file );
 	}