diff --git a/resources/settings/fdmprinter.json b/resources/settings/fdmprinter.json
index b2f7a8a110..a370586bb1 100644
--- a/resources/settings/fdmprinter.json
+++ b/resources/settings/fdmprinter.json
@@ -48,7 +48,7 @@
             "default": 1
         },
         "machine_use_extruder_offset_to_offset_coords": { "default": false },
-        
+
         "extruder_nr": { "default": 0 },
         "machine_nozzle_offset_x": { "default": 0, "SEE_machine_extruder_trains": true },
         "machine_nozzle_offset_y": { "default": 0, "SEE_machine_extruder_trains": true  },
diff --git a/resources/settings/ultimaker2.json b/resources/settings/ultimaker2.json
index 2f1b4bd408..16a002c290 100644
--- a/resources/settings/ultimaker2.json
+++ b/resources/settings/ultimaker2.json
@@ -64,14 +64,8 @@
             "machine_extruder_end_code": {
                 "default": "" 
             },
-            "machine_switch_extruder_retraction_amount": { 
-                "default": 16 
-            },
-            "machine_switch_extruder_retraction_speed": { 
-                "default": 20 
-            },
-            "machine_switch_extruder_prime_speed": { 
-                "default": 20 
+            "machine_heat_zone_length": { 
+                "default": 16
             }
         }
     ],
diff --git a/resources/settings/ultimaker_original.json b/resources/settings/ultimaker_original.json
index 1ad53808fb..6c9ed09fc2 100644
--- a/resources/settings/ultimaker_original.json
+++ b/resources/settings/ultimaker_original.json
@@ -69,14 +69,8 @@
             "machine_extruder_end_code": {
                 "default": "" 
             },
-            "machine_switch_extruder_retraction_amount": { 
-                "default": 16 
-            },
-            "machine_switch_extruder_retraction_speed": { 
-                "default": 20 
-            },
-            "machine_switch_extruder_prime_speed": { 
-                "default": 20 
+            "machine_heat_zone_length": { 
+                "default": 16
             }
         }
     ],