diff --git a/src/graphics/graphics.h b/src/graphics/graphics.h
index 0e0ba77..ec69537 100644
--- a/src/graphics/graphics.h
+++ b/src/graphics/graphics.h
@@ -131,7 +131,7 @@ ORCA_API void oc_surface_send_to_back(oc_surface surface);   //DOC: puts surface
 
 typedef void (*oc_vsync_callback)(void* data);
 
-ORCA_API void oc_vsync_init();
+ORCA_API void oc_vsync_init(void);
 ORCA_API void oc_vsync_window(oc_window window);
 
 //------------------------------------------------------------------------------------------
diff --git a/src/graphics/win32_vsync.c b/src/graphics/win32_vsync.c
index 88ef542..0bfc4c9 100644
--- a/src/graphics/win32_vsync.c
+++ b/src/graphics/win32_vsync.c
@@ -6,34 +6,15 @@
 *
 *****************************************************************/
 
-// #define WIN32_LEAN_AND_MEAN
-// #define WIN32_EXTRA_LEAN
-// #define NOMINMAX
-
-// #define D3D11_NO_HELPERS
-// #define CINTERFACE
-// #define COBJMACROS
-
-// #define interface struct
-
-// #include <windows.h>
-
 #include "platform/platform_thread.h"
 #include "app/win32_app.h"
 
-// This forward declaration is needed to suppress an order of declarations bug in the d3d headers.
-// d3d11shader.h(454): warning C4115: 'ID3D11ModuleInstance': named type definition in parentheses
-// struct ID3D11ModuleInstance;
-
 #define COBJMACROS
 #define interface struct
 #include <d3d11_1.h>
 #include <dxgi1_6.h>
 #undef interface
 
-// #include <dxgidebug.h>
-// #include <d3dcompiler.h>
-
 typedef struct oc_vsync_data
 {
     IDXGIFactory4* factory;
@@ -125,7 +106,7 @@ static i32 oc_window_vysnc_notification_thread(void* userPointer)
     return 0;
 }
 
-void oc_vsync_init()
+void oc_vsync_init(void)
 {
     if(__oc_vsync_data.adapter)
     {