diff --git a/src/core/Track.cpp b/src/core/Track.cpp
index f12bdb069..5acbb6477 100644
--- a/src/core/Track.cpp
+++ b/src/core/Track.cpp
@@ -998,7 +998,9 @@ bool TrackContentObjectView::mouseMovedDistance( QMouseEvent * _me, int distance
  */
 TrackContentWidget::TrackContentWidget( TrackView * _parent ) :
 	QWidget( _parent ),
-	m_trackView( _parent )
+	m_trackView( _parent ),
+	m_darkerColor( Qt::SolidPattern ),
+	m_lighterColor( Qt::SolidPattern )
 {
 	setAcceptDrops( true );
 
diff --git a/src/gui/AutomationEditor.cpp b/src/gui/AutomationEditor.cpp
index dc14eca60..cb90253b4 100644
--- a/src/gui/AutomationEditor.cpp
+++ b/src/gui/AutomationEditor.cpp
@@ -98,9 +98,9 @@ AutomationEditor::AutomationEditor() :
 	m_editMode( DRAW ),
 	m_scrollBack( false ),
 	m_gridColor( 0,0,0 ),
-	m_graphColor(),
+	m_graphColor( Qt::SolidPattern ),
 	m_vertexColor( 0,0,0 ),
-	m_scaleColor()
+	m_scaleColor( Qt::SolidPattern )
 {
 	connect( this, SIGNAL( currentPatternChanged() ),
 				this, SLOT( updateAfterPatternChange() ),
diff --git a/src/gui/widgets/FxLine.cpp b/src/gui/widgets/FxLine.cpp
index 36baa782f..8f39af38c 100644
--- a/src/gui/widgets/FxLine.cpp
+++ b/src/gui/widgets/FxLine.cpp
@@ -46,7 +46,8 @@ QPixmap * FxLine::s_receiveBgArrow = NULL;
 FxLine::FxLine( QWidget * _parent, FxMixerView * _mv, int _channelIndex) :
 	QWidget( _parent ),
 	m_mv( _mv ),
-	m_channelIndex( _channelIndex )
+	m_channelIndex( _channelIndex ),
+	m_backgroundActive( Qt::SolidPattern )
 {
 	if( ! s_sendBgArrow )
 	{