diff --git a/app/models/user.rb b/app/models/user.rb
index 57663f3eb..b863c1f70 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -228,7 +228,7 @@ class User < Principal
   # Prevents unauthorized assignments
   attr_protected :login, :admin, :password, :password_confirmation, :hashed_password
 
-  LOGIN_LENGTH_LIMIT = 25
+  LOGIN_LENGTH_LIMIT = 30
   MAIL_LENGTH_LIMIT = 60
 
   validates_presence_of :login,  :mail, :if => Proc.new { |user| !user.is_a?(AnonymousUser) }