diff --git a/src/graphics/graphics.h b/src/graphics/graphics.h
index b9547a8..ad9ee85 100644
--- a/src/graphics/graphics.h
+++ b/src/graphics/graphics.h
@@ -128,12 +128,14 @@ ORCA_API void oc_surface_send_to_back(oc_surface surface);   //DOC: puts surface
 //------------------------------------------------------------------------------------------
 //SECTION: vsync
 //------------------------------------------------------------------------------------------
+#if !defined(OC_PLATFORM_ORCA) || !OC_PLATFORM_ORCA
 
 typedef void (*oc_vsync_callback)(void* data);
 
 ORCA_API void oc_vsync_init(void);
 ORCA_API void oc_vsync_wait(oc_window window);
 
+#endif
 //------------------------------------------------------------------------------------------
 //SECTION: graphics canvas structs
 //------------------------------------------------------------------------------------------