diff --git a/src/core/audio/AudioAlsa.cpp b/src/core/audio/AudioAlsa.cpp
index afd39c476..5421fc6b5 100644
--- a/src/core/audio/AudioAlsa.cpp
+++ b/src/core/audio/AudioAlsa.cpp
@@ -93,6 +93,7 @@ AudioAlsa::AudioAlsa( bool & _success_ful, Mixer*  _mixer ) :
 		oldflags |= FD_CLOEXEC;
 		fcntl( fd, F_SETFD, oldflags );
 	}
+	delete[] ufds;
 	_success_ful = true;
 }
 
diff --git a/src/gui/AutomationEditor.cpp b/src/gui/AutomationEditor.cpp
index bf49b0eb3..e45097e0b 100644
--- a/src/gui/AutomationEditor.cpp
+++ b/src/gui/AutomationEditor.cpp
@@ -458,6 +458,8 @@ AutomationEditor::~AutomationEditor()
 	m_zoomingYModel.disconnect();
 	m_quantizeModel.disconnect();
 	m_tensionModel->disconnect();
+
+	delete m_tensionModel;
 }
 
 
diff --git a/src/gui/FxMixerView.cpp b/src/gui/FxMixerView.cpp
index 7828f9ec5..a18ccd7ae 100644
--- a/src/gui/FxMixerView.cpp
+++ b/src/gui/FxMixerView.cpp
@@ -163,6 +163,10 @@ FxMixerView::FxMixerView() :
 
 FxMixerView::~FxMixerView()
 {
+	for (int i=0; i<m_fxChannelViews.size(); i++)
+	{
+		delete m_fxChannelViews.at(i);
+	}
 }
 
 
diff --git a/src/gui/widgets/visualization_widget.cpp b/src/gui/widgets/visualization_widget.cpp
index 8abf808d9..36692bc33 100644
--- a/src/gui/widgets/visualization_widget.cpp
+++ b/src/gui/widgets/visualization_widget.cpp
@@ -65,6 +65,7 @@ visualizationWidget::visualizationWidget( const QPixmap & _bg, QWidget * _p,
 visualizationWidget::~visualizationWidget()
 {
 	delete[] m_buffer;
+	delete[] m_points;
 }