diff --git a/controllers/myprofile/proposals_discussion_plugin_tasks_controller.rb b/controllers/myprofile/proposals_discussion_plugin_tasks_controller.rb
index 5c1e191..30ed11f 100644
--- a/controllers/myprofile/proposals_discussion_plugin_tasks_controller.rb
+++ b/controllers/myprofile/proposals_discussion_plugin_tasks_controller.rb
@@ -78,4 +78,11 @@ class ProposalsDiscussionPluginTasksController < TasksController
 
   end
 
+  def undo_flags
+    if params[:tasks].present?
+      ProposalsDiscussionPlugin::ProposalTask.undo_flags params[:tasks], current_user
+    end
+    redirect_to :controller => 'tasks', :action => 'processed', :filter => {type: 'ProposalsDiscussionPlugin::ProposalTask'}
+  end
+
 end
diff --git a/lib/proposals_discussion_plugin/proposal_task.rb b/lib/proposals_discussion_plugin/proposal_task.rb
index 743a920..250c6da 100644
--- a/lib/proposals_discussion_plugin/proposal_task.rb
+++ b/lib/proposals_discussion_plugin/proposal_task.rb
@@ -20,6 +20,8 @@ class ProposalsDiscussionPlugin::ProposalTask < Task
   settings_items :article, :type => Hash, :default => {}
   settings_items :closing_statment, :article_parent_id
 
+  attr_accessible :requestor, :target, :article, :status, :end_date, :closed_by
+
 
   scope :pending_evaluated, lambda { |profile, filter_type, filter_text|
     self
@@ -128,6 +130,20 @@ class ProposalsDiscussionPlugin::ProposalTask < Task
     end
   end
 
+  def self.undo_flags(tasks, user)
+    fields = "status = #{Task::Status::ACTIVE}, end_date = NULL, closed_by_id = #{user.id}"
+    result = self.update_all(fields, ["id IN (?)",tasks])
+    result
+  end
+
+  def undo_flag(user)
+    if flagged?
+      self.status = Task::Status::ACTIVE
+      self.end_date = nil
+      self.closed_by = user
+      self.save!
+    end
+  end
 
   def schedule_spam_checking
     self.delay.check_for_spam
diff --git a/test/unit/proposal_task_test.rb b/test/unit/proposal_task_test.rb
index 7546691..b9bf223 100644
--- a/test/unit/proposal_task_test.rb
+++ b/test/unit/proposal_task_test.rb
@@ -77,6 +77,31 @@ class ProposalTaskTest < ActiveSupport::TestCase
     assert_equal person2, task.responsible
   end
 
+  should 'undo proposal task reject flag' do
+    role1 = Role.create!(:name => 'profile_role2', :permissions => ['perform_task'], :environment => Environment.default)
+    role2 = Role.create!(:name => 'profile_role', :permissions => ['view_tasks'], :environment => Environment.default)
+
+    person1 = fast_create(Person)
+    person1.define_roles([role1], profile)
+    person2 = fast_create(Person)
+    person2.define_roles([role2], profile)
+
+    task = ProposalsDiscussionPlugin::ProposalTask.create!(:requestor => person, :target => profile, :article => {:name => 'proposal 1', :abstract => 'proposal 1'})
+    task_two = ProposalsDiscussionPlugin::ProposalTask.create!(:requestor => person, :target => profile, :article => {:name => 'proposal 2', :abstract => 'proposal 2'})
+    task.categories = task_two.categories = [fast_create(ProposalsDiscussionPlugin::TaskCategory)]
+    task.flag_reject_proposal(person2)
+    task_two.flag_reject_proposal(person2)
+    assert task.flagged?
+    assert task_two.flagged?
+
+    ProposalsDiscussionPlugin::ProposalTask.undo_flags([task.id,task_two.id], person)
+    task.reload
+    task_two.reload
+
+    assert_equal [false,false], [task.flagged?,task_two.flagged?]
+    assert_equal [Task::Status::ACTIVE,Task::Status::ACTIVE], [task.status, task_two.status]
+  end
+
   should 'do not fail on task information with integer as abstract' do
     task = ProposalsDiscussionPlugin::ProposalTask.new
     task.expects(:abstract).returns(49)
diff --git a/views/tasks/processed.html.erb b/views/tasks/processed.html.erb
new file mode 100644
index 0000000..ebc4931
--- /dev/null
+++ b/views/tasks/processed.html.erb
@@ -0,0 +1,58 @@
+<%= stylesheet_link_tag 'tasks' %>
+
+<div class="task-processed">
+<h1><%= _("%s's processed tasks") % profile.name %></h1>
+
+<div class="task-processed-filter">
+<%
+  type_collection = [[nil, _('All')]] + @task_types
+%>
+  <%= form_tag '#', :method => 'get' do %>
+    <%= field_set_tag _('Filter'), :class => 'filter_fields' do %>
+      <div>
+        <%= labelled_select(_('Type of task')+': ', 'filter[type]', :first, :last, @filter[:type],  type_collection, {:id => 'filter-type'}) %>
+        <%= labelled_select(_('Status:'), 'filter[status]', :last, :first, @filter[:status], [[_('Any'), nil], [_(Task::Status.names[Task::Status::CANCELLED]), 2], [_(Task::Status.names[Task::Status::FINISHED]), 3] ]) %>
+      </div>
+
+      <div>
+        <%= labelled_text_field(_('Text Filter:'), 'filter[text]', @filter[:text]) %>
+      </div>
+
+      <div>
+        <%= labelled_text_field(_('Requestor:'), 'filter[requestor]', @filter[:requestor]) %>
+        <%= labelled_text_field(_('Closed by:'), 'filter[closed_by]', @filter[:closed_by]) %>
+      </div>
+
+      <%= labelled_form_field(_('Creation date'), date_range_field('filter[created_from]', 'filter[created_until]', @filter[:created_from], @filter[:created_until], '%Y-%m-%d', { :change_month => true, :change_year => true, :date_format => 'yy-mm-dd' }, { :size => 14, :from_id => 'filter_created_from', :to_id => 'filter_created_until' })) %>
+      <%= labelled_form_field(_('Processed date'), date_range_field('filter[closed_from]', 'filter[closed_until]', @filter[:closed_from], @filter[:closed_until], '%Y-%m-%d', { :change_month => true, :change_year => true, :date_format => 'yy-mm-dd' }, { :size => 14, :from_id => 'filter_closed_from', :to_id => 'filter_closed_until' })) %>
+
+      <div class="actions">
+        <%= submit_button(:search, _('Search')) %>
+      </div>
+    <% end %>
+  <% end %>
+</div>
+
+<p>
+<% if @tasks.empty? %>
+  <em><%= _('No processed tasks.') %></em>
+<% else %>
+  <%= form_tag :controller => :proposals_discussion_plugin_tasks, :action => 'undo_flags', :method => 'post' do %>
+    <ul class="task-list">
+      <% @tasks.each do |item| %>
+        <li class="task status-<%= item.status%>">
+          <%= render :partial => partial_for_class(item.class, nil, 'processed'), :locals => {:task => item} %>
+        </li>
+      <% end %>
+    </ul>
+    <%= pagination_links(@tasks)%>
+    <input type="submit" name="commit" value="Restore" class="button with-text icon-child-article submit">
+  <% end %>
+<% end %>
+</p>
+
+<% button_bar do %>
+  <%= button(:back, _('Back'), :action => 'index') %>
+<% end %>
+
+</div>
diff --git a/views/tasks/proposals_discussion_plugin/_proposal_task_processed.html.erb b/views/tasks/proposals_discussion_plugin/_proposal_task_processed.html.erb
index f5f2e70..decd2a7 100644
--- a/views/tasks/proposals_discussion_plugin/_proposal_task_processed.html.erb
+++ b/views/tasks/proposals_discussion_plugin/_proposal_task_processed.html.erb
@@ -2,6 +2,7 @@
   <b><%= _('Source') %>:</b> <%= task.proposal_source %>
 </div>
 <div class="title">
+  <input type="checkbox" name="tasks[]" value="<%=task.id%>"
   <%= task_information(task) %>
 </div>
 <div class="status">
--
libgit2 0.21.2