diff --git a/Source/Core/DolphinQt/Config/Mapping/IOWindow.cpp b/Source/Core/DolphinQt/Config/Mapping/IOWindow.cpp
index 8a60e574aa..2a0caef151 100644
--- a/Source/Core/DolphinQt/Config/Mapping/IOWindow.cpp
+++ b/Source/Core/DolphinQt/Config/Mapping/IOWindow.cpp
@@ -118,6 +118,7 @@ void IOWindow::CreateMainLayout()
 void IOWindow::Update()
 {
   m_expression_text->setPlainText(QString::fromStdString(m_reference->GetExpression()));
+  m_expression_text->moveCursor(QTextCursor::End, QTextCursor::MoveAnchor);
   m_range_spinbox->setValue(m_reference->range * SLIDER_TICK_COUNT);
   m_range_slider->setValue(m_reference->range * SLIDER_TICK_COUNT);