diff --git a/include/SDL3/SDL_pixels.h b/include/SDL3/SDL_pixels.h
index 7fc636be7..6da0b93a8 100644
--- a/include/SDL3/SDL_pixels.h
+++ b/include/SDL3/SDL_pixels.h
@@ -91,6 +91,8 @@ typedef enum
 {
     SDL_ARRAYORDER_NONE,
     SDL_ARRAYORDER_RGB,
+    SDL_ARRAYORDER_UNUSED1, /* Left for compatibility with SDL2 */
+    SDL_ARRAYORDER_UNUSED2, /* Left for compatibility with SDL2 */
     SDL_ARRAYORDER_BGR
 } SDL_ArrayOrder;