--- a/src/pyams_content/component/paragraph/keynumber.py	Fri Jun 08 17:50:09 2018 +0200
+++ b/src/pyams_content/component/paragraph/keynumber.py	Fri Jun 08 18:05:11 2018 +0200
@@ -57,8 +57,9 @@
     """Key number persistent class"""
 
     visible = FieldProperty(IKeyNumber['visible'])
+    label = FieldProperty(IKeyNumber['label'])
     number = FieldProperty(IKeyNumber['number'])
-    label = FieldProperty(IKeyNumber['label'])
+    unit = FieldProperty(IKeyNumber['unit'])
     text = FieldProperty(IKeyNumber['text'])