diff --git a/resources/definitions/ultimaker.def.json b/resources/definitions/ultimaker.def.json
index d70d55ecf4..5df38d07cb 100644
--- a/resources/definitions/ultimaker.def.json
+++ b/resources/definitions/ultimaker.def.json
@@ -5,7 +5,7 @@
     "inherits": "fdmprinter",
     "metadata": {
         "author": "Ultimaker",
-        "manufacturer": "Ultimaker"
-        "visible": false,
+        "manufacturer": "Ultimaker",
+        "visible": false
     }
 }
diff --git a/resources/definitions/ultimaker2_extended_plus.def.json b/resources/definitions/ultimaker2_extended_plus.def.json
index 96239fa804..50f0e73b9f 100644
--- a/resources/definitions/ultimaker2_extended_plus.def.json
+++ b/resources/definitions/ultimaker2_extended_plus.def.json
@@ -9,8 +9,7 @@
         "category": "Ultimaker",
         "file_formats": "text/x-gcode",
         "platform": "ultimaker2_platform.obj",
-        "platform_texture": "Ultimaker2ExtendedPlusbackplate.png",
-        "visible": false
+        "platform_texture": "Ultimaker2ExtendedPlusbackplate.png"
     },
 
     "overrides": {
diff --git a/resources/definitions/ultimaker2_plus.def.json b/resources/definitions/ultimaker2_plus.def.json
index b29f904095..4432fab170 100644
--- a/resources/definitions/ultimaker2_plus.def.json
+++ b/resources/definitions/ultimaker2_plus.def.json
@@ -3,7 +3,6 @@
     "version": 2,
     "name": "Ultimaker 2+",
     "inherits": "ultimaker2",
-    "visible": "false",
     "metadata": {
         "author": "Ultimaker",
         "manufacturer": "Ultimaker",