diff --git a/app/models/category.rb b/app/models/category.rb
index 885a19f..991278c 100644
--- a/app/models/category.rb
+++ b/app/models/category.rb
@@ -7,13 +7,13 @@ class Category < ActiveRecord::Base
     :slug => 1,
   }
 
-  validates_exclusion_of :slug, :in => [ 'index' ], :message => N_('%{fn} cannot be like that.').fix_i18n
+  validates_exclusion_of :slug, :in => [ 'index' ], :message => N_('{fn} cannot be like that.').fix_i18n
   validates_presence_of :name, :environment_id
-  validates_uniqueness_of :slug,:scope => [ :environment_id, :parent_id ], :message => N_('%{fn} is already being used by another category.').fix_i18n
+  validates_uniqueness_of :slug,:scope => [ :environment_id, :parent_id ], :message => N_('{fn} is already being used by another category.').fix_i18n
   belongs_to :environment
 
   validates_inclusion_of :display_color, :in => [ 1, 2, 3, 4, nil ]
-  validates_uniqueness_of :display_color, :scope => :environment_id, :if => (lambda { |cat| ! cat.display_color.nil? }), :message => N_('%{fn} was already assigned to another category.').fix_i18n
+  validates_uniqueness_of :display_color, :scope => :environment_id, :if => (lambda { |cat| ! cat.display_color.nil? }), :message => N_('{fn} was already assigned to another category.').fix_i18n
 
   # Finds all top level categories for a given environment. 
   named_scope :top_level_for, lambda { |environment|
diff --git a/app/models/comment.rb b/app/models/comment.rb
index f5dd826..17c75a3 100644
--- a/app/models/comment.rb
+++ b/app/models/comment.rb
@@ -29,7 +29,7 @@ class Comment < ActiveRecord::Base
   validates_presence_of :author_id, :if => (lambda { |rec| rec.name.blank? && rec.email.blank? })
   validates_each :name do |rec,attribute,value|
     if rec.author_id && (!rec.name.blank? || !rec.email.blank?)
-      rec.errors.add(:name, _('%{fn} can only be informed for unauthenticated authors').fix_i18n)
+      rec.errors.add(:name, _('{fn} can only be informed for unauthenticated authors').fix_i18n)
     end
   end
 
diff --git a/app/models/create_enterprise.rb b/app/models/create_enterprise.rb
index df11e4b..1afc10a 100644
--- a/app/models/create_enterprise.rb
+++ b/app/models/create_enterprise.rb
@@ -40,12 +40,12 @@ class CreateEnterprise < Task
 
     if self.region && self.target
       unless self.region.validators.include?(self.target) || self.target_type == "Environment"
-        self.errors.add(:target, _('%{fn} is not a validator for the chosen region').fix_i18n)
+        self.errors.add(:target, _('{fn} is not a validator for the chosen region').fix_i18n)
       end
     end
 
     if self.status != Task::Status::CANCELLED && self.identifier && Profile.exists?(:identifier => self.identifier)
-      self.errors.add(:identifier, _('%{fn} is already being as identifier by another enterprise, organization or person.').fix_i18n)
+      self.errors.add(:identifier, _('{fn} is already being as identifier by another enterprise, organization or person.').fix_i18n)
     end
   end
 
diff --git a/app/models/domain.rb b/app/models/domain.rb
index 9b89c61..d5ddf00 100644
--- a/app/models/domain.rb
+++ b/app/models/domain.rb
@@ -10,14 +10,14 @@ class Domain < ActiveRecord::Base
 
   # <tt>name</tt> must be sequences of alphanumeric characters (a to z,
   # 0 to 9), plus '_' or '-', separated by dots. Letters must be lowercase.
-  validates_format_of :name, :with => /^([a-z0-9_-]+\.)+[a-z0-9_-]+$/, :message => N_('%{fn} must be composed of sequences of lowercase letters (a to z), numbers (0 to 9), "_" and "-", separated by dots.').fix_i18n
+  validates_format_of :name, :with => /^([a-z0-9_-]+\.)+[a-z0-9_-]+$/, :message => N_('{fn} must be composed of sequences of lowercase letters (a to z), numbers (0 to 9), "_" and "-", separated by dots.').fix_i18n
 
   # checks validations that could not be expressed using Rails' predefined
   # validations. In particular:
   # * <tt>name</tt> must not start with 'www.'
   def validate
     if self.name =~ /^www\./
-      self.errors.add(:name, _('%{fn} must not start with www.').fix_i18n)
+      self.errors.add(:name, _('{fn} must not start with www.').fix_i18n)
     end
   end
 
diff --git a/app/models/event.rb b/app/models/event.rb
index 712a4cd..72baea1 100644
--- a/app/models/event.rb
+++ b/app/models/event.rb
@@ -25,7 +25,7 @@ class Event < Article
 
   validates_each :start_date do |event,field,value|
     if event.end_date && event.start_date && event.start_date > event.end_date
-      event.errors.add(:start_date, _('%{fn} cannot come before end date.').fix_i18n)
+      event.errors.add(:start_date, _('{fn} cannot come before end date.').fix_i18n)
     end
   end
 
diff --git a/app/models/image.rb b/app/models/image.rb
index e0b953d..cbef186 100644
--- a/app/models/image.rb
+++ b/app/models/image.rb
@@ -17,7 +17,7 @@ class Image < ActiveRecord::Base
                                   :icon     => '20x20!' },
                  :max_size => 5.megabytes # remember to update validate message below
 
-  validates_attachment :size => N_("%{fn} of uploaded file was larger than the maximum size of 5.0 MB").fix_i18n
+  validates_attachment :size => N_("{fn} of uploaded file was larger than the maximum size of 5.0 MB").fix_i18n
 
   delay_attachment_fu_thumbnails
 
diff --git a/app/models/person.rb b/app/models/person.rb
index 8729394..8358188 100644
--- a/app/models/person.rb
+++ b/app/models/person.rb
@@ -240,7 +240,7 @@ class Person < Profile
 
   validates_each :email, :on => :update do |record,attr,value|
     if User.find(:first, :conditions => ['email = ? and id != ? and environment_id = ?', value, record.user.id, record.environment.id])
-      record.errors.add(attr, _('%{fn} is already used by other user').fix_i18n)
+      record.errors.add(attr, _('{fn} is already used by other user').fix_i18n)
     end
   end
 
diff --git a/app/models/uploaded_file.rb b/app/models/uploaded_file.rb
index 5be009e..ef6e5be 100644
--- a/app/models/uploaded_file.rb
+++ b/app/models/uploaded_file.rb
@@ -54,7 +54,7 @@ class UploadedFile < Article
     :thumbnail_class => Thumbnail,
     :max_size => 5.megabytes # remember to update validate message below
 
-  validates_attachment :size => N_("%{fn} of uploaded file was larger than the maximum size of 5.0 MB").fix_i18n
+  validates_attachment :size => N_("{fn} of uploaded file was larger than the maximum size of 5.0 MB").fix_i18n
 
   delay_attachment_fu_thumbnails
 
diff --git a/app/models/user.rb b/app/models/user.rb
index fd5d7aa..323ae22 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -114,7 +114,7 @@ class User < ActiveRecord::Base
   before_save :encrypt_password
   validates_format_of :email, :with => Noosfero::Constants::EMAIL_FORMAT, :if => (lambda {|user| !user.email.blank?})
 
-  validates_inclusion_of :terms_accepted, :in => [ '1' ], :if => lambda { |u| ! u.terms_of_use.blank? }, :message => N_('%{fn} must be checked in order to signup.').fix_i18n
+  validates_inclusion_of :terms_accepted, :in => [ '1' ], :if => lambda { |u| ! u.terms_of_use.blank? }, :message => N_('{fn} must be checked in order to signup.').fix_i18n
 
   # Authenticates a user by their login name or email and unencrypted password.  Returns the user or nil.
   def self.authenticate(login, password, environment = nil)
--
libgit2 0.21.2