diff --git a/src/gui/editors/PianoRoll.cpp b/src/gui/editors/PianoRoll.cpp
index 27198ce8b19..194867ce463 100644
--- a/src/gui/editors/PianoRoll.cpp
+++ b/src/gui/editors/PianoRoll.cpp
@@ -3563,13 +3563,14 @@ void PianoRoll::focusOutEvent( QFocusEvent * )
 	update();
 }
 
-void PianoRoll::focusInEvent( QFocusEvent * )
+void PianoRoll::focusInEvent( QFocusEvent * ev )
 {
 	if ( hasValidPattern() )
 	{
 		// Assign midi device
 		m_pattern->instrumentTrack()->autoAssignMidiDevice(true);
 	}
+	QWidget::focusInEvent(ev);
 }