diff --git a/src/emu/ui/viewgfx.c b/src/emu/ui/viewgfx.c
index 29a86044d19..1238a5f4a29 100644
--- a/src/emu/ui/viewgfx.c
+++ b/src/emu/ui/viewgfx.c
@@ -1152,7 +1152,6 @@ static void tilemap_update_bitmap(running_machine &machine, ui_gfx_state *state,
 
 		// allocate new stuff
 		state->bitmap = global_alloc(bitmap_rgb32(width, height));
-		state->bitmap->set_palette(machine.first_screen()->palette()->palette());
 		state->texture = machine.render().texture_alloc();
 		state->texture->set_bitmap(*state->bitmap, state->bitmap->cliprect(), TEXFORMAT_RGB32);