diff --git a/app/models/environment.rb b/app/models/environment.rb
index 414fe6e..4a440db 100644
--- a/app/models/environment.rb
+++ b/app/models/environment.rb
@@ -123,7 +123,7 @@ class Environment < ActiveRecord::Base
   # only one environment can be the default one
   validates_uniqueness_of :is_default, :if => (lambda do |environment| environment.is_default? end), :message => _('Only one Virtual Community can be the default one')
 
-  validates_format_of :contact_email, :with => Noosfero::Constants::EMAIL_FORMAT, :if => (lambda { |record| ! record.contact_email.nil? })
+  validates_format_of :contact_email, :with => Noosfero::Constants::EMAIL_FORMAT, :if => (lambda { |record| ! record.contact_email.blank? })
 
   # #################################################
   # Business logic in general
--
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