diff --git a/resources/definitions/dxu_dual.def.json b/resources/definitions/dxu_dual.def.json
index 8fb2092b65..ba37882d40 100644
--- a/resources/definitions/dxu_dual.def.json
+++ b/resources/definitions/dxu_dual.def.json
@@ -6,6 +6,5 @@
     {
         "machine_end_gcode": { "value": "\"\"  if machine_gcode_flavor == \"UltiGCode\" else \"G90 ;absolute positioning\\nM104 S0 T0 ;extruder heater off\\nM104 S0 T1\\nM140 S0 ;turn off bed\\nT0 ; move to the first head\\nM107 ;fan off\"" },
         "machine_start_gcode": { "value": "\"\"  if machine_gcode_flavor == \"UltiGCode\" else \";material_bed_temperature={material_bed_temperature} material_print_temperature={material_print_temperature} material_print_temperature_layer_0={material_print_temperature_layer_0}\\nM190 S{material_bed_temperature_layer_0}\\nM104 T0 S{material_standby_temperature, 0}\\nM104 T0 S{material_print_temperature_layer_0, 0}\\nG21 ;metric values\\nG90 ;absolute positioning\\nM82 ;set extruder to absolute mode\\nM107 ;start with the fan off\\nM200 D0 T0 ;reset filament diameter\\nM200 D0 T1\\nG28 ;home all\\nT1 ; move to the nozzle 2\\nG0 Z20 F2400 ;move the platform to 30mm\\nM109 T1 S{material_print_temperature_layer_0, 1}\\nG0 X210 Y20 F7200\\nG92 E0\\nG92 E-7.0 ;prime distance\\nG1 E0 F45 ;purge nozzle\\nG1 E-6.5 F1500 ; retract\\nT0 ; move to the nozzle 1\\nM104 T1 S{material_standby_temperature, 1}\\nG0 Z20 F2400\\nM109 T0 S{material_print_temperature_layer_0, 0}\\nG0 X210 Y20 F7200\\nG92 E0\\nG92 E-7.0\\nG1 E0 F45 ;purge nozzle\\nG1 E-6.5 F1500\\nM104 T0 S{material_standby_temperature, 0}\\nT{initial_extruder_nr} ;switch to the first nozzle used for print\\nM109 T{initial_extruder_nr} S{material_print_temperature_layer_0, initial_extruder_nr}\\nM400 ;finish all moves\\nG1 E0 F1500\\nG92 E0\\n;end of startup sequence\\n\"" },
-        "prime_tower_mode": { "default_value": "normal" }
     }
 }
\ No newline at end of file
diff --git a/resources/definitions/elegoo_neptune_2D.def.json b/resources/definitions/elegoo_neptune_2D.def.json
index 2d5ef0024e..dbdf066b21 100644
--- a/resources/definitions/elegoo_neptune_2D.def.json
+++ b/resources/definitions/elegoo_neptune_2D.def.json
@@ -56,7 +56,6 @@
         },
         "prime_blob_enable": { "default_value": false },
         "prime_tower_min_volume": { "default_value": 90 },
-        "prime_tower_mode": { "default_value": "normal" },
         "prime_tower_size": { "default_value": 30 },
         "raft_airgap": { "default_value": 0.25 },
         "raft_margin": { "default_value": 5 },
diff --git a/resources/definitions/strateo3d_IDEX420.def.json b/resources/definitions/strateo3d_IDEX420.def.json
index 785301c51e..47a3af714b 100644
--- a/resources/definitions/strateo3d_IDEX420.def.json
+++ b/resources/definitions/strateo3d_IDEX420.def.json
@@ -113,7 +113,6 @@
         "machine_width": { "default_value": 420 },
         "material_diameter": { "default_value": 1.75 },
         "prime_tower_min_volume": { "default_value": 35.6 },
-        "prime_tower_mode": { "default_value": "normal" },
         "raft_acceleration": { "value": "machine_acceleration" },
         "raft_base_acceleration": { "value": "machine_acceleration" },
         "raft_interface_acceleration": { "value": "machine_acceleration" },
diff --git a/resources/definitions/ultimaker3.def.json b/resources/definitions/ultimaker3.def.json
index 9e4c9310c8..43f718e2db 100644
--- a/resources/definitions/ultimaker3.def.json
+++ b/resources/definitions/ultimaker3.def.json
@@ -149,7 +149,6 @@
             "enabled": true,
             "value": "resolveOrValue('print_sequence') != 'one_at_a_time'"
         },
-        "prime_tower_mode": { "default_value": "normal" },
         "prime_tower_position_x": { "value": "185" },
         "prime_tower_wipe_enabled": { "default_value": false },
         "retraction_amount": { "value": "6.5" },