diff --git a/resources/definitions/ultimaker.def.json b/resources/definitions/ultimaker.def.json
index 33ef546dab..9e0182a966 100644
--- a/resources/definitions/ultimaker.def.json
+++ b/resources/definitions/ultimaker.def.json
@@ -43,7 +43,7 @@
         },
         "skin_angles": {
             "value": "[] if infill_pattern not in ['cross', 'cross_3d'] else [20, 110]"
-        }
+        },
         "line_width": {
             "value": "machine_nozzle_size"
         },