diff --git a/resources/definitions/fdmprinter.def.json b/resources/definitions/fdmprinter.def.json
index 6eef6b1e9b..22b7992d64 100644
--- a/resources/definitions/fdmprinter.def.json
+++ b/resources/definitions/fdmprinter.def.json
@@ -3633,7 +3633,7 @@
                     "minimum_value": "0",
                     "maximum_value_warning": "100",
                     "default_value": 15,
-                    "value": "15 if support_enable else 0",
+                    "value": "15 if support_enable else 0 if support_tree_enable else 15",
                     "enabled": "support_enable or support_tree_enable",
                     "limit_to_extruder": "support_infill_extruder_nr",
                     "settable_per_mesh": false,