diff --git a/include/ReWindow/types/Window.h b/include/ReWindow/types/Window.h
index 46ed444..0e8f3f7 100644
--- a/include/ReWindow/types/Window.h
+++ b/include/ReWindow/types/Window.h
@@ -9,6 +9,7 @@
 #include <ReWindow/types/MouseButton.h>
 #include <ReWindow/types/WindowEvents.h>
 #include <queue>
+#include <Windows.h>
 
 
 namespace ReWindow {
@@ -45,6 +46,7 @@ public:
 /// RWindow is a class implementation of a platform-independent window abstraction.
 /// This library also provides abstractions for user-input devices, and their interaction with the window.
 class ReWindow::RWindow {
+
 protected:
     class Platform;
     Platform* platform;
@@ -332,7 +334,11 @@ public:
 
     /// Updates internals to account for the latest calculated frame time.
     void UpdateFrameTiming(float frame_time);
-public:
+
+#ifdef WIN32
+    static LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
+#endif
+protected:
 /// These unfortunately *have* to be public because of the poor design of the windows event loop.
     void processKeyRelease(Key key);
     void processKeyPress(Key key);
diff --git a/src/platform/windows/Window.cpp b/src/platform/windows/Window.cpp
index 602d926..eed0e0a 100644
--- a/src/platform/windows/Window.cpp
+++ b/src/platform/windows/Window.cpp
@@ -95,7 +95,7 @@ void RWindow::PollEvents() {
     focused = local_focused;
 }
 
-LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
+LRESULT CALLBACK RWindow::WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
     auto* window = reinterpret_cast<RWindow*>( GetWindowLongPtr(hwnd, GWLP_USERDATA) );
     switch (uMsg) {
             case WM_CLOSE: {
@@ -415,7 +415,7 @@ bool OpenGLWindow::Open() {
   platform->hInstance = GetModuleHandle(nullptr);
 
   WNDCLASS wc = { };
-  wc.lpfnWndProc = WindowProc;
+  wc.lpfnWndProc = RWindow::WindowProc;
   wc.hInstance = platform->hInstance;
   wc.lpszClassName = "RWindowClass";
   RegisterClass(&wc);