diff --git a/resources/machines/fdmprinter.json b/resources/machines/fdmprinter.json
index a283e1fcfd..5f918bf047 100644
--- a/resources/machines/fdmprinter.json
+++ b/resources/machines/fdmprinter.json
@@ -256,7 +256,6 @@
                             "min_value_warning": "0.2",
                             "max_value_warning": "5",
                             "type": "float",
-                            "inherit_function": "parent_value",
                             "visible": false,
                             "children": {
                                 "wall_line_count": {
@@ -454,7 +453,7 @@
                             "type": "float",
                             "default": 2,
                             "visible": false,
-                            "inherit_function": "0 if parent_value == 0 else (infill_line_width * 100) / parent_value"
+                            "inherit_function": "0 if infill_sparse_density == 0 else (infill_line_width * 100) / infill_sparse_density"
                         }
                     }
                 },
@@ -505,7 +504,7 @@
                             "type": "int",
                             "default": 1,
                             "visible": false,
-                            "inherit_function": "math.floor((parent_value + 0.001) / layer_height)"
+                            "inherit_function": "math.floor((   parent_value + 0.001) / layer_height)"
                         }
                     }
                 },