diff --git a/app/models/user.rb b/app/models/user.rb
index 0bd19e1c..ffed3549 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -35,9 +35,9 @@ class User < ActiveRecord::Base
   validates_presence_of :nick, :email
   validates_presence_of :password_hash, :message => "Password is required."
   validates_length_of :nick, :in => 2..25
-  validates_uniqueness_of :nick
+  validates_uniqueness_of :nick, :case_sensitive => false
   validates_format_of :email, :with => /^([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})$/i
-  validates_uniqueness_of :email	
+  validates_uniqueness_of :email, :case_sensitive => false
   validates_length_of :first_name, :in => 2..50
   validates_confirmation_of :password
   validates_length_of :password, :in => 5..25, :allow_blank => true