diff --git a/resources/definitions/fdmprinter.def.json b/resources/definitions/fdmprinter.def.json
index e7f8094089..323e9e16a7 100644
--- a/resources/definitions/fdmprinter.def.json
+++ b/resources/definitions/fdmprinter.def.json
@@ -5702,7 +5702,7 @@
                     "minimum_value": "0",
                     "maximum_value": "min(0.5 * machine_width, 0.5 * machine_depth)",
                     "minimum_value_warning": "max(extruderValues('prime_tower_line_width')) * 2",
-                    "maximum_value_warning": "20",
+                    "maximum_value_warning": "42",
                     "settable_per_mesh": false,
                     "settable_per_extruder": false
                 },