--- a/src/pyams_skin/skin.py	Tue Jun 19 18:13:24 2018 +0200
+++ b/src/pyams_skin/skin.py	Mon Jun 25 16:10:49 2018 +0200
@@ -75,6 +75,7 @@
     def skin(self, value):
         if not self.inherit_skin:
             self._skin = value
+        del self.skin_parent
 
     @volatile_property
     def skin_parent(self):