diff --git a/src/game_sdk/hosted_game/sdk.py b/src/game_sdk/hosted_game/sdk.py
index fd1fd63d..dc7f29ed 100644
--- a/src/game_sdk/hosted_game/sdk.py
+++ b/src/game_sdk/hosted_game/sdk.py
@@ -36,6 +36,7 @@ def simulate(self, session_id: str,  goal: str, description: str,  functions: li
                     "sessionId": session_id,
                     "goal": goal,
                     "description": description,
+                    "worldInfo": "",
                     "functions": functions,
                     "customFunctions": [x.toJson() for x in custom_functions]
                 }
@@ -60,6 +61,7 @@ def react(self, session_id: str, platform: str, goal: str,
             "sessionId": session_id,
             "goal": goal,
             "description": description,
+            "worldInfo": "",
             "functions": functions,
             "customFunctions": [x.toJson() for x in custom_functions]
         }