diff --git a/fox32rom.def b/fox32rom.def
index 82fdd79..cdbbf67 100644
--- a/fox32rom.def
+++ b/fox32rom.def
@@ -16,8 +16,9 @@ draw_decimal_generic:                     jmp [0xF0041008]
 draw_hex_generic:                         jmp [0xF004100C]
 draw_font_tile_generic:                   jmp [0xF0041010]
 draw_tile_generic:                        jmp [0xF0041014]
-draw_pixel_generic:                       jmp [0xF0041018]
-draw_filled_rectangle_generic:            jmp [0xF004101C]
+set_tilemap:                              jmp [0xF0041018]
+draw_pixel_generic:                       jmp [0xF004101C]
+draw_filled_rectangle_generic:            jmp [0xF0041020]
 
 ; background jump table
 fill_background:                          jmp [0xF0042000]
diff --git a/main.asm b/main.asm
index 74c619a..2e2c787 100644
--- a/main.asm
+++ b/main.asm
@@ -159,6 +159,7 @@ get_rom_version:
     data.32 draw_decimal_generic
     data.32 draw_font_tile_generic
     data.32 draw_tile_generic
+    data.32 set_tilemap
     data.32 draw_pixel_generic
     data.32 draw_filled_rectangle_generic