diff --git a/src/slic3r/GUI/DeviceManager.cpp b/src/slic3r/GUI/DeviceManager.cpp
index 9392c0f82..b1314ed09 100644
--- a/src/slic3r/GUI/DeviceManager.cpp
+++ b/src/slic3r/GUI/DeviceManager.cpp
@@ -2075,6 +2075,7 @@ void MachineObject::reset()
     last_mc_print_stage = -1;
     m_new_ver_list_exist = false;
     extruder_axis_status = LOAD;
+    nozzle_diameter = 0.0f;
 
     vt_tray.reset();
 
@@ -2661,6 +2662,19 @@ int MachineObject::parse_json(std::string payload)
                     }
 #pragma endregion
 
+                    try {
+                        if (jj.contains("nozzle_diameter")) {
+                            if (jj["nozzle_diameter"].is_number_float()) {
+                                nozzle_diameter = jj["nozzle_diameter"].get<float>();
+                            } else if (jj["nozzle_diameter"].is_string()) {
+                                nozzle_diameter = stof(jj["nozzle_diameter"].get<std::string>().c_str());
+                            }
+                        }
+                    }
+                    catch(...) {
+                        ;
+                    }
+
 #pragma region upgrade
                     try {
                         if (jj.contains("upgrade_state")) {
diff --git a/src/slic3r/GUI/DeviceManager.hpp b/src/slic3r/GUI/DeviceManager.hpp
index a2e4ca8e0..60328a0e2 100644
--- a/src/slic3r/GUI/DeviceManager.hpp
+++ b/src/slic3r/GUI/DeviceManager.hpp
@@ -405,6 +405,7 @@ public:
     std::string dev_ip;
     std::string dev_id;
     bool        local_use_ssl { false };
+    float       nozzle_diameter { 0.0f };
     std::string dev_connection_type;    /* lan | cloud */
     std::string connection_type() { return dev_connection_type; }
     void set_dev_ip(std::string ip) {dev_ip = ip;};