diff --git a/resources/extruders/blocks_mkii_extruder_0.def.json b/resources/extruders/blocks_mkii_extruder_0.def.json
index ccedede3d5..b5c7eefd0d 100644
--- a/resources/extruders/blocks_mkii_extruder_0.def.json
+++ b/resources/extruders/blocks_mkii_extruder_0.def.json
@@ -9,7 +9,7 @@
 
     "overrides": {
         "extruder_nr": { "default_value": 0 },
-        "machine_nozzle_size": { "default_value": 0.4 },
+        
         "material_diameter": { "default_value": 1.75 }
     }
 }
\ No newline at end of file
diff --git a/resources/extruders/blocks_one_extruder_0.def.json b/resources/extruders/blocks_one_extruder_0.def.json
index c26b6ade85..d98b2040d6 100644
--- a/resources/extruders/blocks_one_extruder_0.def.json
+++ b/resources/extruders/blocks_one_extruder_0.def.json
@@ -9,7 +9,7 @@
 
     "overrides": {
         "extruder_nr": { "default_value": 0 },
-        "machine_nozzle_size": { "default_value": 0.4 },
+        
         "material_diameter": { "default_value": 1.75 }
     }
 }
\ No newline at end of file
diff --git a/resources/extruders/blocks_oneauto_extruder_0.def.json b/resources/extruders/blocks_oneauto_extruder_0.def.json
index 1f28ca5dcf..d188e7dd4b 100644
--- a/resources/extruders/blocks_oneauto_extruder_0.def.json
+++ b/resources/extruders/blocks_oneauto_extruder_0.def.json
@@ -9,7 +9,7 @@
 
     "overrides": {
         "extruder_nr": { "default_value": 0 },
-        "machine_nozzle_size": { "default_value": 0.4 },
+        
         "material_diameter": { "default_value": 1.75 }
     }
 }
\ No newline at end of file
diff --git a/resources/extruders/blocks_pros30_extruder_0.def.json b/resources/extruders/blocks_pros30_extruder_0.def.json
index e40f46920c..377f7cfbcd 100644
--- a/resources/extruders/blocks_pros30_extruder_0.def.json
+++ b/resources/extruders/blocks_pros30_extruder_0.def.json
@@ -9,7 +9,7 @@
 
     "overrides": {
         "extruder_nr": { "default_value": 0 },
-        "machine_nozzle_size": { "default_value": 0.4 },
+        
         "material_diameter": { "default_value": 1.75 }
     }
 }
\ No newline at end of file
diff --git a/resources/extruders/blocks_r21_extruder_0.def.json b/resources/extruders/blocks_r21_extruder_0.def.json
index 93109264f9..72b4465f51 100644
--- a/resources/extruders/blocks_r21_extruder_0.def.json
+++ b/resources/extruders/blocks_r21_extruder_0.def.json
@@ -9,7 +9,7 @@
 
     "overrides": {
         "extruder_nr": { "default_value": 0 },
-        "machine_nozzle_size": { "default_value": 0.4 },
+        
         "material_diameter": { "default_value": 1.75 }
     }
 }
\ No newline at end of file
diff --git a/resources/extruders/blocks_rd50_extruder_0.def.json b/resources/extruders/blocks_rd50_extruder_0.def.json
index 6296c0146d..26fea79d4b 100644
--- a/resources/extruders/blocks_rd50_extruder_0.def.json
+++ b/resources/extruders/blocks_rd50_extruder_0.def.json
@@ -9,7 +9,7 @@
 
     "overrides": {
         "extruder_nr": { "default_value": 0 },
-        "machine_nozzle_size": { "default_value": 0.4 },
+        
         "material_diameter": { "default_value": 1.75 }
     }
 }
\ No newline at end of file
diff --git a/resources/extruders/blocks_rd50_extruder_1.def.json b/resources/extruders/blocks_rd50_extruder_1.def.json
index 6a266d87d6..cbada28b1c 100644
--- a/resources/extruders/blocks_rd50_extruder_1.def.json
+++ b/resources/extruders/blocks_rd50_extruder_1.def.json
@@ -9,7 +9,7 @@
 
     "overrides": {
         "extruder_nr": { "default_value": 0 },
-        "machine_nozzle_size": { "default_value": 0.4 },
+        
         "material_diameter": { "default_value": 1.75 }
     }
 }
\ No newline at end of file
diff --git a/resources/extruders/blocks_zero_extruder_0.def.json b/resources/extruders/blocks_zero_extruder_0.def.json
index 18d612560a..5a07c17b92 100644
--- a/resources/extruders/blocks_zero_extruder_0.def.json
+++ b/resources/extruders/blocks_zero_extruder_0.def.json
@@ -9,7 +9,7 @@
 
     "overrides": {
         "extruder_nr": { "default_value": 0 },
-        "machine_nozzle_size": { "default_value": 0.4 },
+        
         "material_diameter": { "default_value": 1.75 }
     }
 }
\ No newline at end of file