diff --git a/resources/definitions/3dtech_semi_professional.def.json b/resources/definitions/3dtech_semi_professional.def.json
index fe466192df..df4479befb 100644
--- a/resources/definitions/3dtech_semi_professional.def.json
+++ b/resources/definitions/3dtech_semi_professional.def.json
@@ -7,7 +7,8 @@
         "author": "3DTech",
         "manufacturer": "3DTech",
         "file_formats": "text/x-gcode",
-		"platform": "3dtech_semi_professional_platform.stl",
+        "platform": "3dtech_semi_professional_platform.stl",
+        "platform_offset": [0, -2.5, 0 ],
         "machine_extruder_trains":
         {
             "0": "3dtech_semi_professional_extruder_0"