diff --git a/message_server/simulation_state_ms.go b/message_server/simulation_state_ms.go
index 54f416e..b4a949d 100644
--- a/message_server/simulation_state_ms.go
+++ b/message_server/simulation_state_ms.go
@@ -12,7 +12,7 @@ func NewStateMs(vs *memory.VerifySimulation) ms_api.MsgTask {
 	return ms_api.NewMonitorTask("仿真状态", func() {
 		ecs.WorldStateChangeEvent.Subscribe(vs.World, func(_ ecs.World, e ecs.WorldStateChange) {
 			switch e.NewState {
-			case ecs.WorldClose:
+			case ecs.WorldClosed:
 				mqtt.PubSimulationState(vs.SimulationId, &state.SimulationStatus{
 					SimulationId: vs.SimulationId,
 					State:        state.SimulationStatus_DESTROY,