diff --git a/agent/deep_assistant.py b/agent/deep_assistant.py
index 2dcfb31..e973e67 100644
--- a/agent/deep_assistant.py
+++ b/agent/deep_assistant.py
@@ -253,6 +253,7 @@ async def init_agent(config: AgentConfig):
         checkpointer=checkpointer,
         shell_env={
             "ASSISTANT_ID": config.bot_id,
+            "USER_IDENTIFIER": config.user_identifier,
             "TRACE_ID": config.trace_id
         }
     )