diff --git a/resources/machines/fdmprinter.json b/resources/machines/fdmprinter.json
index 44d22276ba..f11d5d4955 100644
--- a/resources/machines/fdmprinter.json
+++ b/resources/machines/fdmprinter.json
@@ -578,7 +578,7 @@
                     "type": "float",
                     "default": 10,
                     "inherit_function": "10 if infill_sparse_density < 95 else 0",
-                    "min_value": "0",
+                    "min_value_warning": "-50",
                     "max_value_warning": "100",
                     "visible": false,
                     "children": {
@@ -588,7 +588,7 @@
                             "unit": "mm",
                             "type": "float",
                             "default": 0.04,
-                            "min_value_warning": "0",
+                            "min_value_warning": "-0.5 * machine_nozzle_size",
                             "max_value_warning": "machine_nozzle_size",
                             "inherit_function": "infill_line_width * parent_value / 100",
                             "visible": false