diff --git a/actors/boo/geo.inc.c b/actors/boo/geo.inc.c
index 646b167c6..6e4ff4c09 100644
--- a/actors/boo/geo.inc.c
+++ b/actors/boo/geo.inc.c
@@ -4,7 +4,7 @@ const GeoLayout boo_geo[] = {
    GEO_OPEN_NODE(),
       GEO_SCALE(0x00, 26214),
       GEO_OPEN_NODE(),
-         GEO_ASM(0, geo_update_layer_transparency),
+         GEO_ASM(GEO_TRANSPARENCY_MODE_NORMAL, geo_update_layer_transparency),
          GEO_SWITCH_CASE(2, geo_switch_anim_state),
          GEO_OPEN_NODE(),
             GEO_DISPLAY_LIST(LAYER_OPAQUE, boo_seg5_dl_0500C1B0),