diff --git a/Source/Core/DolphinNoGUI/PlatformHeadless.cpp b/Source/Core/DolphinNoGUI/PlatformHeadless.cpp
index 2f6ea2e7ac..9bf3383032 100644
--- a/Source/Core/DolphinNoGUI/PlatformHeadless.cpp
+++ b/Source/Core/DolphinNoGUI/PlatformHeadless.cpp
@@ -10,7 +10,7 @@
 
 namespace
 {
-class PlatformHeadless : public Platform
+class PlatformHeadless final : public Platform
 {
 public:
   void SetTitle(const std::string& title) override;
diff --git a/Source/Core/DolphinNoGUI/PlatformWin32.cpp b/Source/Core/DolphinNoGUI/PlatformWin32.cpp
index 01575ecca5..5ba9afb5e1 100644
--- a/Source/Core/DolphinNoGUI/PlatformWin32.cpp
+++ b/Source/Core/DolphinNoGUI/PlatformWin32.cpp
@@ -17,7 +17,7 @@
 
 namespace
 {
-class PlatformWin32 : public Platform
+class PlatformWin32 final : public Platform
 {
 public:
   ~PlatformWin32() override;