diff --git a/Source/Core/DolphinQt2/Config/Mapping/MappingButton.cpp b/Source/Core/DolphinQt2/Config/Mapping/MappingButton.cpp
index cd776f6cbb..b72f13aa9a 100644
--- a/Source/Core/DolphinQt2/Config/Mapping/MappingButton.cpp
+++ b/Source/Core/DolphinQt2/Config/Mapping/MappingButton.cpp
@@ -90,16 +90,6 @@ void MappingButton::SetBlockInputs(const bool block)
   m_block = block;
 }
 
-void MappingWindow::OnDefaultFieldsPressed()
-{
-  if (m_controller == nullptr)
-    return;
-
-  m_controller->LoadDefaults(g_controller_interface);
-  m_controller->UpdateReferences(g_controller_interface);
-  emit Update();
-}
-
 bool MappingButton::event(QEvent* event)
 {
   return !m_block ? QPushButton::event(event) : true;
diff --git a/Source/Core/DolphinQt2/Config/Mapping/MappingWindow.cpp b/Source/Core/DolphinQt2/Config/Mapping/MappingWindow.cpp
index 660ac02174..785ff5788e 100644
--- a/Source/Core/DolphinQt2/Config/Mapping/MappingWindow.cpp
+++ b/Source/Core/DolphinQt2/Config/Mapping/MappingWindow.cpp
@@ -381,3 +381,13 @@ bool MappingWindow::event(QEvent* event)
 
   return false;
 }
+
+void MappingWindow::OnDefaultFieldsPressed()
+{
+  if (m_controller == nullptr)
+    return;
+
+  m_controller->LoadDefaults(g_controller_interface);
+  m_controller->UpdateReferences(g_controller_interface);
+  emit Update();
+}