diff --git a/Source/Core/DolphinQt/Config/Mapping/MappingButton.cpp b/Source/Core/DolphinQt/Config/Mapping/MappingButton.cpp
index 794ed02997..3af4c2e00e 100644
--- a/Source/Core/DolphinQt/Config/Mapping/MappingButton.cpp
+++ b/Source/Core/DolphinQt/Config/Mapping/MappingButton.cpp
@@ -72,7 +72,7 @@ bool MappingButton::IsInput() const
   return m_reference->IsInput();
 }
 
-MappingButton::MappingButton(MappingWidget* parent, ControlReference* ref, bool indicator)
+MappingButton::MappingButton(MappingWidget* parent, ControlReference* ref)
     : ElidedButton(RefToDisplayString(ref)), m_mapping_window(parent->GetParent()), m_reference(ref)
 {
   if (IsInput())
@@ -87,9 +87,6 @@ MappingButton::MappingButton(MappingWidget* parent, ControlReference* ref, bool
 
   connect(this, &MappingButton::clicked, this, &MappingButton::Clicked);
 
-  if (indicator)
-    connect(parent, &MappingWidget::Update, this, &MappingButton::UpdateIndicator);
-
   connect(parent, &MappingWidget::ConfigChanged, this, &MappingButton::ConfigChanged);
   connect(this, &MappingButton::ConfigChanged, [this] {
     setText(RefToDisplayString(m_reference));
@@ -134,21 +131,6 @@ void MappingButton::Clear()
   m_mapping_window->UnQueueInputDetection(this);
 }
 
-void MappingButton::UpdateIndicator()
-{
-  QFont f = m_mapping_window->font();
-
-  if (isActiveWindow() && m_reference->IsInput() && m_reference->GetState<bool>() && !m_is_mapping)
-    f.setBold(true);
-
-  // If the expression has failed to parse, show it in italic.
-  // Some expressions still work even the failed to parse so don't prevent the GetState() above.
-  if (m_reference->GetParseStatus() == ciface::ExpressionParser::ParseStatus::SyntaxError)
-    f.setItalic(true);
-
-  setFont(f);
-}
-
 void MappingButton::StartMapping()
 {
   // Focus just makes it more clear which button is currently being mapped.
diff --git a/Source/Core/DolphinQt/Config/Mapping/MappingButton.h b/Source/Core/DolphinQt/Config/Mapping/MappingButton.h
index 11da51da6c..76bb412079 100644
--- a/Source/Core/DolphinQt/Config/Mapping/MappingButton.h
+++ b/Source/Core/DolphinQt/Config/Mapping/MappingButton.h
@@ -15,7 +15,7 @@ class MappingButton : public ElidedButton
 {
   Q_OBJECT
 public:
-  MappingButton(MappingWidget* widget, ControlReference* ref, bool indicator);
+  MappingButton(MappingWidget* widget, ControlReference* ref);
 
   bool IsInput() const;
   ControlReference* GetControlReference();
@@ -26,7 +26,6 @@ signals:
 
 private:
   void Clear();
-  void UpdateIndicator();
   void AdvancedPressed();
 
   void Clicked();
diff --git a/Source/Core/DolphinQt/Config/Mapping/MappingWidget.cpp b/Source/Core/DolphinQt/Config/Mapping/MappingWidget.cpp
index 067fbabfc2..82fe042f9a 100644
--- a/Source/Core/DolphinQt/Config/Mapping/MappingWidget.cpp
+++ b/Source/Core/DolphinQt/Config/Mapping/MappingWidget.cpp
@@ -313,7 +313,7 @@ QGroupBox* MappingWidget::CreateControlsBox(const QString& name, ControllerEmu::
 void MappingWidget::CreateControl(const ControllerEmu::Control* control, QFormLayout* layout,
                                   bool indicator)
 {
-  auto* const button = new MappingButton(this, control->control_ref.get(), indicator);
+  auto* const button = new MappingButton(this, control->control_ref.get());
   button->setMinimumWidth(100);
   button->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);