diff --git a/resources/definitions/fdmprinter.def.json b/resources/definitions/fdmprinter.def.json
index c930a624d0..6b46fc645e 100644
--- a/resources/definitions/fdmprinter.def.json
+++ b/resources/definitions/fdmprinter.def.json
@@ -8412,6 +8412,15 @@
                     "minimum_value_warning": "25",
                     "settable_per_mesh": true
                 },
+                "wall_overhang_speed_factors":
+                {
+                    "label": "Overhanging Wall Speeds",
+                    "description": "Overhanging walls will be printed at a percentage of their normal print speed. You can specify multiple values, so that even more overhanging walls will be printed even slower, e.g. by setting '[75, 50, 25]'.",
+                    "unit": "%",
+                    "type": "[int]",
+                    "default_value": "[100]",
+                    "settable_per_mesh": true
+                },
                 "bridge_settings_enabled":
                 {
                     "label": "Enable Bridge Settings",