diff --git a/src/slic3r/GUI/DeviceManager.cpp b/src/slic3r/GUI/DeviceManager.cpp
index 4009dc6bce..1b920560de 100644
--- a/src/slic3r/GUI/DeviceManager.cpp
+++ b/src/slic3r/GUI/DeviceManager.cpp
@@ -4024,7 +4024,6 @@ int MachineObject::parse_json(std::string tunnel, std::string payload, bool key_
                             if (jj["result"].get<std::string>() == "fail") {
                                 is_succeed = false;
                             }
-                            is_succeed = false;
                         }
 
                         if (is_succeed) {