diff --git a/src/gui/editors/PianoRoll.cpp b/src/gui/editors/PianoRoll.cpp
index 4c9543265..22cc09f3a 100644
--- a/src/gui/editors/PianoRoll.cpp
+++ b/src/gui/editors/PianoRoll.cpp
@@ -2760,7 +2760,7 @@ void PianoRoll::updateKnifePos(QMouseEvent* me)
 {
 	// Calculate the TimePos from the mouse
 	int mouseViewportPos = me->x() - m_whiteKeyWidth;
-	int mouseTickPos = mouseViewportPos / (m_ppb / TimePos::ticksPerBar()) + m_currentPosition;
+	int mouseTickPos = mouseViewportPos * TimePos::ticksPerBar() / m_ppb + m_currentPosition;
 
 	// If ctrl is not pressed, quantize the position
 	if (!(me->modifiers() & Qt::ControlModifier))