diff --git a/Source/Core/DolphinQt/MainWindow.cpp b/Source/Core/DolphinQt/MainWindow.cpp
index 4bb13e29e2..bd3b0e103b 100644
--- a/Source/Core/DolphinQt/MainWindow.cpp
+++ b/Source/Core/DolphinQt/MainWindow.cpp
@@ -261,16 +261,6 @@ void DMainWindow::OnCoreStateChanged(Core::EState state)
 	m_game_tracker->setEnabled(is_not_initialized);
 }
 
-bool DMainWindow::RenderWidgetHasFocus()
-{
-	if (SConfig::GetInstance().m_LocalCoreStartupParameter.bRenderToMain)
-		return isActiveWindow();
-	else if (m_render_widget != nullptr)
-		return m_render_widget->isActiveWindow();
-	else
-		return false;
-}
-
 // Update all the icons used in DMainWindow with fresh ones from
 // "Resources". Call this function after changing the icon theme.
 void DMainWindow::UpdateIcons()
diff --git a/Source/Core/DolphinQt/MainWindow.h b/Source/Core/DolphinQt/MainWindow.h
index 7b17c5eaa4..cee7743adb 100644
--- a/Source/Core/DolphinQt/MainWindow.h
+++ b/Source/Core/DolphinQt/MainWindow.h
@@ -27,7 +27,7 @@ public:
 	~DMainWindow();
 
 	// DRenderWidget
-	bool RenderWidgetHasFocus();
+	bool RenderWidgetHasFocus() const { return m_render_widget->isActiveWindow(); }
 	DRenderWidget* GetRenderWidget() { return m_render_widget.get(); }
 
 signals: