diff --git a/attributs.py b/attributs.py
index 92a2ea4..21d9447 100644
--- a/attributs.py
+++ b/attributs.py
@@ -300,7 +300,6 @@ class canonicalAlias(mail):
 
     def parse_value(self, val, ldif):
         val = u".".join([ a.capitalize() for a in val.split(u'.', 1) ])
-        val = u"-".join([ a.capitalize() for a in val.split(u'-', 1) ])
         if not re.match('^[-_.0-9A-Za-z]+@([A-Za-z0-9]{1}[A-Za-z0-9-_]+[.])+[a-z]{2,6}$', val):
             raise ValueError("Alias mail invalide (%s)" % val)
         self.value = val