diff --git a/PyPoE/cli/exporter/wiki/parsers/lua.py b/PyPoE/cli/exporter/wiki/parsers/lua.py
index cd59f2a7..4c1c682c 100644
--- a/PyPoE/cli/exporter/wiki/parsers/lua.py
+++ b/PyPoE/cli/exporter/wiki/parsers/lua.py
@@ -489,6 +489,12 @@ class BestiaryParser(GenericLuaParser):
                 "key": "notes",
             },
         ),
+        (
+            "GameMode",
+            {
+                "key": "game_mode",
+            },
+        ),
     )
 
     _COPY_KEYS_BESTIARY_COMPONENTS = (
diff --git a/PyPoE/poe/file/specification/data/generated.py b/PyPoE/poe/file/specification/data/generated.py
index 276af1c0..2c6f8f9c 100644
--- a/PyPoE/poe/file/specification/data/generated.py
+++ b/PyPoE/poe/file/specification/data/generated.py
@@ -3925,8 +3925,9 @@
                     type="int",
                 ),
                 Field(
-                    name="Unknown2",
+                    name="GameMode",
                     type="int",
+                    description="1: Normal, 2: Ruthless",
                 ),
                 Field(
                     name="FlaskMod",