diff --git a/src/core/TempoSyncKnobModel.cpp b/src/core/TempoSyncKnobModel.cpp
index e89716ab2..7f707478f 100644
--- a/src/core/TempoSyncKnobModel.cpp
+++ b/src/core/TempoSyncKnobModel.cpp
@@ -117,6 +117,10 @@ void TempoSyncKnobModel::calculateTempoSyncTime( bpm_t _bpm )
 		emit syncModeChanged( m_tempoSyncMode );
 		m_tempoLastSyncMode = m_tempoSyncMode;
 	}
+	else if (m_tempoSyncMode == SyncMode::Custom)
+	{
+		emit syncModeChanged(m_tempoSyncMode);
+	}
 }
 
 
diff --git a/src/gui/widgets/TempoSyncKnob.cpp b/src/gui/widgets/TempoSyncKnob.cpp
index b58e61cf4..473cee28c 100644
--- a/src/gui/widgets/TempoSyncKnob.cpp
+++ b/src/gui/widgets/TempoSyncKnob.cpp
@@ -75,8 +75,7 @@ void TempoSyncKnob::modelChanged()
 	{
 		m_custom->setModel( &model()->m_custom );
 	}
-	connect( model(), SIGNAL(syncModeChanged(lmms::TempoSyncKnobModel::TempoSyncMode)),
-			this, SLOT(updateDescAndIcon()));
+	connect(model(), &TempoSyncKnobModel::syncModeChanged, this, &TempoSyncKnob::updateDescAndIcon);
 	connect( this, SIGNAL(sliderMoved(float)),
 			model(), SLOT(disableSync()));
 	updateDescAndIcon();