Corrected header file guard comment.
diff --git a/src/video/wayland/SDL_waylandvideo.h b/src/video/wayland/SDL_waylandvideo.h
index 06bcdc4..77d431e 100644
--- a/src/video/wayland/SDL_waylandvideo.h
+++ b/src/video/wayland/SDL_waylandvideo.h
@@ -69,6 +69,6 @@ typedef struct {
uint32_t shm_formats;
} SDL_VideoData;
-#endif /* _SDL_nullvideo_h */
+#endif /* _SDL_waylandvideo_h */
/* vi: set ts=4 sw=4 expandtab: */