diff --git a/Source/Core/DolphinNoGUI/PlatformWin32.cpp b/Source/Core/DolphinNoGUI/PlatformWin32.cpp
index 39daae400a..7304332682 100644
--- a/Source/Core/DolphinNoGUI/PlatformWin32.cpp
+++ b/Source/Core/DolphinNoGUI/PlatformWin32.cpp
@@ -26,7 +26,7 @@ public:
   void SetTitle(const std::string& string) override;
   void MainLoop() override;
 
-  WindowSystemInfo GetWindowSystemInfo() const;
+  WindowSystemInfo GetWindowSystemInfo() const override;
 
 private:
   static constexpr TCHAR WINDOW_CLASS_NAME[] = _T("DolphinNoGUI");