diff --git a/ground/blackrock.arc b/ground/blackrock.arc
index a7b2a4d00..a82cebf66 100644
--- a/ground/blackrock.arc
+++ b/ground/blackrock.arc
@@ -2,7 +2,7 @@ Object blackrock
 name blackrock
 face blackrock.111
 color_fg black
-type 58
+type 0
 no_pick 1
 is_floor 1
 editable 8