diff --git a/resources/definitions/beamup_l.def.json b/resources/definitions/beamup_l.def.json
index 231d89a6f9..66ef4301e7 100644
--- a/resources/definitions/beamup_l.def.json
+++ b/resources/definitions/beamup_l.def.json
@@ -7,7 +7,7 @@
         "author": "BeamUp",
         "manufacturer": "BeamUp",
         "file_formats": "text/x-gcode",
-        "platform": "beamup_l.stl",
+        "platform": "beamup_l.3mf",
         "platform_offset": [0, -5, 0],
         "has_machine_quality": true,
         "has_materials": true,