diff --git a/main.asm b/main.asm
index 2e2c787..5cacd8b 100644
--- a/main.asm
+++ b/main.asm
@@ -157,6 +157,7 @@ get_rom_version:
     data.32 draw_str_generic
     data.32 draw_format_str_generic
     data.32 draw_decimal_generic
+    data.32 draw_hex_generic
     data.32 draw_font_tile_generic
     data.32 draw_tile_generic
     data.32 set_tilemap