diff --git a/service/disinfection_printer_service.cpp b/service/disinfection_printer_service.cpp
index 9379049..1c9d83d 100644
--- a/service/disinfection_printer_service.cpp
+++ b/service/disinfection_printer_service.cpp
@@ -72,7 +72,7 @@ void DisinfectionPrinterService::printTask(shared_ptr<DisinfectionPrinterTask> t
       dio->printerPrintf(fmt::format("{}\n", format_zsystem_tp(ss->time)));
       if (now_state == kstate_preheat) {
         dio->printerPrintf(fmt::format("预热中...\n"));
-      } else if (now_state == kstate_preheat) {
+      } else if (now_state == kstate_disinfection) {
         dio->printerPrintf(fmt::format("消毒中...\n"));
       } else if (now_state == kstate_degradation) {
         dio->printerPrintf(fmt::format("降解中...\n"));