diff --git a/letta/agent.py b/letta/agent.py
index 483d3cb8..4c1bc4e0 100644
--- a/letta/agent.py
+++ b/letta/agent.py
@@ -1075,6 +1075,7 @@ def save_agent(agent: Agent):
         message_ids=agent_state.message_ids,
         description=agent_state.description,
         metadata_=agent_state.metadata_,
+        tool_exec_environment_variables=agent_state.get_agent_env_vars_as_dict(),
     )
     agent_manager.update_agent(agent_id=agent_state.id, agent_update=update_agent, actor=agent.user)