diff --git a/resources/definitions/fdmprinter.def.json b/resources/definitions/fdmprinter.def.json
index 99cfede396..ecebee13fc 100755
--- a/resources/definitions/fdmprinter.def.json
+++ b/resources/definitions/fdmprinter.def.json
@@ -1346,7 +1346,7 @@
                     "description": "The height of infill of a given density before switching to half the density.",
                     "unit": "mm",
                     "type": "float",
-                    "default_value": 5.0,
+                    "default_value": 1.5,
                     "minimum_value": "0.0001",
                     "minimum_value_warning": "3 * resolveOrValue('layer_height')",
                     "maximum_value_warning": "100",