diff --git a/examples/example1_labels.json b/examples/example1_labels.json
index 9d786ae..81f6271 100644
--- a/examples/example1_labels.json
+++ b/examples/example1_labels.json
@@ -27,7 +27,8 @@
             {
                 "y": 155.0, 
                 "x": 409.0, 
-                "type": "point"
+                "type": "point",
+                "class": "mouth"
             }
         ], 
         "filename": "image2.jpg"