diff --git a/resources/definitions/fdmprinter.def.json b/resources/definitions/fdmprinter.def.json
index 10bd2efd4a..0089686335 100644
--- a/resources/definitions/fdmprinter.def.json
+++ b/resources/definitions/fdmprinter.def.json
@@ -7,7 +7,7 @@
         "author": "Ultimaker",
         "manufacturer": "Unknown",
         "setting_version": 16,
-        "file_formats": "text/x-gcode;application/x-stl-ascii;application/x-stl-binary;application/x-wavefront-obj;application/x3g",
+        "file_formats": "text/x-gcode;model/stl;application/x-wavefront-obj;application/x3g",
         "visible": false,
         "has_materials": true,
         "has_variants": false,
diff --git a/resources/definitions/maker_starter.def.json b/resources/definitions/maker_starter.def.json
index 6687ef25af..d847bd4fe5 100644
--- a/resources/definitions/maker_starter.def.json
+++ b/resources/definitions/maker_starter.def.json
@@ -6,7 +6,7 @@
         "visible": true,
         "author": "tvlgiao",
         "manufacturer": "3DMaker",
-        "file_formats": "text/x-gcode;application/x-stl-ascii;application/x-stl-binary;application/x-wavefront-obj",
+        "file_formats": "text/x-gcode;model/stl;application/x-wavefront-obj",
         "platform": "makerstarter_platform.3mf",
         "preferred_quality_type": "draft",
         "machine_extruder_trains":