diff --git a/app/models/user.rb b/app/models/user.rb
index 573261b7..5568027d 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -54,7 +54,7 @@ class User < ActiveRecord::Base
   # Login must contain lettres, numbers, underscores only
   validates_format_of :login, :with => /^[a-z0-9_\-@\.]*$/i
   validates_length_of :login, :maximum => 30
-  validates_format_of :firstname, :lastname, :with => /^[\w\s\'\-]*$/i
+  validates_format_of :firstname, :lastname, :with => /^[\w\s\'\-\.]*$/i
   validates_length_of :firstname, :lastname, :maximum => 30
   validates_format_of :mail, :with => /^([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})$/i, :allow_nil => true
   validates_length_of :mail, :maximum => 60, :allow_nil => true