diff --git a/resources/definitions/hms434.def.json b/resources/definitions/hms434.def.json
index 8d17996c6c..8bfc08627b 100644
--- a/resources/definitions/hms434.def.json
+++ b/resources/definitions/hms434.def.json
@@ -108,17 +108,24 @@
         "infill_pattern":        {"value": "'lines'"},
         "infill_before_walls":   {"value": true},
 
-        "material_print_temperature_layer_0": {"value": "material_print_temperature"},
-        "material_initial_print_temperature": {"value": "material_print_temperature",
-                                               "maximum_value_warning": "material_print_temperature + 15"},
-        "material_final_print_temperature":   {"value": "material_print_temperature"},
-        "material_bed_temperature_layer_0":   {"value": "material_bed_temperature"},
-        "material_flow_layer_0":              {"value": "material_flow"},
-        "retraction_enable":                  {"value": true },
-        "retract_at_layer_change":            {"value": false },
-        "retraction_min_travel":              {"value": "(round(line_width * 10))"},
-        "switch_extruder_retraction_speeds":  {"value": "(retraction_speed)"},
-        "switch_extruder_prime_speed":        {"value": "(retraction_prime_speed)"},
+        "default_material_print_temperature":     {"maximum_value": "401" },
+        "material_print_temperature":             {"maximum_value": "401" },
+        "material_print_temperature_layer_0":     {"value": "material_print_temperature",
+                                                   "maximum_value": "401" },
+        "material_initial_print_temperature":     {"value": "material_print_temperature",
+                                                   "maximum_value_warning": "material_print_temperature + 15",
+                                                   "maximum_value": "401" },
+        "material_initial_print_temperature":     {"maximum_value": "401" },
+        "material_final_print_temperature":       {"value": "material_print_temperature",
+                                                   "maximum_value": "401" },
+        "material_break_preparation_temperature": {"maximum_value": "401" },
+        "material_bed_temperature_layer_0":       {"value": "material_bed_temperature"},
+        "material_flow_layer_0":                  {"value": "material_flow"},
+        "retraction_enable":                      {"value": true },
+        "retract_at_layer_change":                {"value": false },
+        "retraction_min_travel":                  {"value": "(round(line_width * 10))"},
+        "switch_extruder_retraction_speeds":      {"value": "(retraction_speed)"},
+        "switch_extruder_prime_speed":            {"value": "(retraction_prime_speed)"},
 
         "speed_print":             {"value": "50"},
         "speed_infill":            {"value": "speed_print"},