diff --git a/forge-gui/res/adventure/common/config.json b/forge-gui/res/adventure/common/config.json
index 2055bdd8f7d..c06634d51c0 100644
--- a/forge-gui/res/adventure/common/config.json
+++ b/forge-gui/res/adventure/common/config.json
@@ -85,7 +85,8 @@
     "UND",
     "PUST",
     "DA1",
-    "UST"
+    "UST",
+    "UNF"
   ],
   "difficulties": [
     {