diff --git a/worker.h b/worker.h
index 70e4226..e56383e 100644
--- a/worker.h
+++ b/worker.h
@@ -313,6 +313,7 @@ public:
     static const QString UPDATE_STEP_OK;
     static const QString UPDATE_STEP_DONE;
     static const QString UPDATE_STEP_FAIL;
+    static const QString UPDATE_STEP_WRONG;
     static const QString UPDATE_STEP_SUCCESS;
 
     explicit Worker(int customerNr, // 281