diff --git a/resources/definitions/atmat_signal_pro_base.def.json b/resources/definitions/atmat_signal_pro_base.def.json
index 83af53fb3c..0b8761a62c 100644
--- a/resources/definitions/atmat_signal_pro_base.def.json
+++ b/resources/definitions/atmat_signal_pro_base.def.json
@@ -110,7 +110,7 @@
         "min_infill_area": { "value": "5.0" },
         "minimum_polygon_circumference": { "value": "0.2" },
         "optimize_wall_printing_order": { "value": "True" },
-        "prime_tower_mode": { "value": "normal" },
+        "prime_tower_mode": { "value": "'normal'" },
         "retraction_amount": { "value": "1" },
         "retraction_combing": { "value": "'noskin'" },
         "retraction_combing_max_distance": { "value": "10" },
diff --git a/resources/definitions/deltacomb_dc20flux.def.json b/resources/definitions/deltacomb_dc20flux.def.json
index 50f69636bd..f76ba3e4cd 100644
--- a/resources/definitions/deltacomb_dc20flux.def.json
+++ b/resources/definitions/deltacomb_dc20flux.def.json
@@ -32,7 +32,7 @@
         "material_initial_print_temperature": { "value": "material_print_temperature" },
         "material_standby_temperature": { "value": "material_print_temperature" },
         "prime_tower_min_volume": { "value": "50" },
-        "prime_tower_mode": { "value": "normal" },
+        "prime_tower_mode": { "value": "'normal'" },
         "switch_extruder_retraction_amount": { "value": "0" }
     }
 }
\ No newline at end of file
diff --git a/resources/definitions/deltacomb_dc21flux.def.json b/resources/definitions/deltacomb_dc21flux.def.json
index e09fbeca63..3c2080a87b 100644
--- a/resources/definitions/deltacomb_dc21flux.def.json
+++ b/resources/definitions/deltacomb_dc21flux.def.json
@@ -32,7 +32,7 @@
         "material_initial_print_temperature": { "value": "material_print_temperature" },
         "material_standby_temperature": { "value": "material_print_temperature" },
         "prime_tower_min_volume": { "value": "50" },
-        "prime_tower_mode": { "value": "normal" },
+        "prime_tower_mode": { "value": "'normal'" },
         "switch_extruder_retraction_amount": { "value": "0" }
     }
 }
\ No newline at end of file
diff --git a/resources/definitions/deltacomb_dc30flux.def.json b/resources/definitions/deltacomb_dc30flux.def.json
index f59bf53a9a..69249e42fd 100644
--- a/resources/definitions/deltacomb_dc30flux.def.json
+++ b/resources/definitions/deltacomb_dc30flux.def.json
@@ -32,7 +32,7 @@
         "material_initial_print_temperature": { "value": "material_print_temperature" },
         "material_standby_temperature": { "value": "material_print_temperature" },
         "prime_tower_min_volume": { "value": "50" },
-        "prime_tower_mode": { "value": "normal" },
+        "prime_tower_mode": { "value": "'normal'" },
         "switch_extruder_retraction_amount": { "value": "0" }
     }
 }
\ No newline at end of file
diff --git a/resources/definitions/lotmaxx_sc60.def.json b/resources/definitions/lotmaxx_sc60.def.json
index 89eeac9b75..64220c372e 100644
--- a/resources/definitions/lotmaxx_sc60.def.json
+++ b/resources/definitions/lotmaxx_sc60.def.json
@@ -45,7 +45,7 @@
         "meshfix_maximum_resolution": { "value": 0.25 },
         "optimize_wall_printing_order": { "value": true },
         "prime_tower_min_volume": { "value": 30 },
-        "prime_tower_mode": { "value": "normal" },
+        "prime_tower_mode": { "value": "'normal'" },
         "retract_at_layer_change": { "value": false },
         "retraction_amount": { "value": 4.5 },
         "roofing_layer_count": { "value": 1 },
diff --git a/resources/definitions/ultimaker_s3.def.json b/resources/definitions/ultimaker_s3.def.json
index 47a81035c9..ca40788581 100644
--- a/resources/definitions/ultimaker_s3.def.json
+++ b/resources/definitions/ultimaker_s3.def.json
@@ -103,7 +103,7 @@
             "default_value": false,
             "enabled": true
         },
-        "prime_tower_mode": { "value": "normal" },
+        "prime_tower_mode": { "value": "'normal'" },
         "retraction_amount": { "value": "6.5" },
         "retraction_hop": { "value": "2" },
         "retraction_hop_enabled": { "value": "extruders_enabled_count > 1" },
diff --git a/resources/definitions/ultimaker_s5.def.json b/resources/definitions/ultimaker_s5.def.json
index 30ad07dd2c..73854f2890 100644
--- a/resources/definitions/ultimaker_s5.def.json
+++ b/resources/definitions/ultimaker_s5.def.json
@@ -104,7 +104,7 @@
             "default_value": false,
             "enabled": true
         },
-        "prime_tower_mode": { "value": "normal" },
+        "prime_tower_mode": { "value": "'normal'" },
         "retraction_amount": { "value": "6.5" },
         "retraction_combing": { "value": "'no_outer_surfaces'" },
         "retraction_hop": { "value": "2" },