diff --git a/data/json/monsters/obsolete.json b/data/json/monsters/obsolete.json
index bb8bafdb36263..a12dcc9c8cef5 100644
--- a/data/json/monsters/obsolete.json
+++ b/data/json/monsters/obsolete.json
@@ -13,6 +13,7 @@
     "material": [ "iflesh" ],
     "symbol": ".",
     "color": "brown",
+    "looks_like": "mon_centipede_giant",
     "melee_cut": 0,
     "dodge": 1,
     "harvest": "arachnid",