diff --git a/src/gfxinit.h b/src/gfxinit.h
--- a/src/gfxinit.h
+++ b/src/gfxinit.h
@@ -7,5 +7,6 @@
 
 void CheckExternalFiles();
 void GfxLoadSprites();
+void LoadSpritesIndexed(int file_index, uint *sprite_id, const SpriteID *index_tbl);
 
 #endif /* GFXINIT_H */