diff --git a/resources/data/printer_gantries/geometries.json b/resources/data/printer_gantries/geometries.json
index e44daf0999..1d8a7b24bb 100644
--- a/resources/data/printer_gantries/geometries.json
+++ b/resources/data/printer_gantries/geometries.json
@@ -328,7 +328,7 @@
                     "polygons": [
 		        "-170,-164; 170,-164; 170,130; -170,130"
                     ]
-                }
+                },
                 {
                     "height": "80",
                     "type": "box",