diff --git a/resources/machines/fdmprinter.json b/resources/machines/fdmprinter.json
index 33259f5c54..4ab46a1d02 100644
--- a/resources/machines/fdmprinter.json
+++ b/resources/machines/fdmprinter.json
@@ -1303,7 +1303,7 @@
                     "type": "float",
                     "min_value": "-90",
                     "max_value": "90",
-                    "default": 30,
+                    "default": -30,
                     "visible": false,
                     "enabled": "support_conical_enabled and support_enable"
                 },