diff --git a/resources/definitions/ultimaker2.def.json b/resources/definitions/ultimaker2.def.json
index 606d51c545..7b2222e5b3 100644
--- a/resources/definitions/ultimaker2.def.json
+++ b/resources/definitions/ultimaker2.def.json
@@ -7,6 +7,7 @@
         "visible": true,
         "author": "Ultimaker",
         "manufacturer": "Ultimaker",
+        "category": "Ultimaker",
         "file_formats": "text/x-gcode",
         "icon": "icon_ultimaker2.png",
         "platform": "ultimaker2_platform.obj",
diff --git a/resources/definitions/ultimaker_original.def.json b/resources/definitions/ultimaker_original.def.json
index cd2fac4599..ae659174bd 100644
--- a/resources/definitions/ultimaker_original.def.json
+++ b/resources/definitions/ultimaker_original.def.json
@@ -6,6 +6,7 @@
     "metadata": {
         "author": "Ultimaker",
         "manufacturer": "Ultimaker",
+        "category": "Ultimaker",
         "file_formats": "text/x-gcode",
         "icon": "icon_ultimaker.png",
         "platform": "ultimaker_platform.stl",