diff --git a/plugins/display_content/lib/display_content_block.rb b/plugins/display_content/lib/display_content_block.rb
index 228e71d..ace958a 100644
--- a/plugins/display_content/lib/display_content_block.rb
+++ b/plugins/display_content/lib/display_content_block.rb
@@ -61,9 +61,12 @@ class DisplayContentBlock < Block
 
   VALID_CONTENT = ['RawHTMLArticle', 'TextArticle', 'TextileArticle', 'TinyMceArticle', 'Folder', 'Blog', 'Forum']
 
+  include Noosfero::Plugin::HotSpot
+
   def articles_of_parent(parent = nil)
     return [] if self.holder.nil?
-    holder.articles.find(:all, :conditions => {:type => VALID_CONTENT, :parent_id => (parent.nil? ? nil : parent)})
+    types = VALID_CONTENT + plugins.dispatch(:content_types).map(&:name)
+    holder.articles.find(:all, :conditions => {:type => types, :parent_id => (parent.nil? ? nil : parent)})
   end
 
   include ActionController::UrlWriter
diff --git a/plugins/display_content/test/unit/display_content_block_test.rb b/plugins/display_content/test/unit/display_content_block_test.rb
index ce6f331..ae1f35f 100644
--- a/plugins/display_content/test/unit/display_content_block_test.rb
+++ b/plugins/display_content/test/unit/display_content_block_test.rb
@@ -238,6 +238,7 @@ class DisplayContentBlockTest < ActiveSupport::TestCase
     block.nodes= [a1.id, a2.id, a3.id]
     box = mock()
     box.stubs(:owner).returns(profile)
+    box.stubs(:environment).returns(Environment.default)
     block.stubs(:box).returns(box)
     assert_equal [], [a1, a2] - block.articles_of_parent
     assert_equal [], block.articles_of_parent - [a1, a2]
@@ -253,6 +254,7 @@ class DisplayContentBlockTest < ActiveSupport::TestCase
     block = DisplayContentBlock.new
     box = mock()
     box.stubs(:owner).returns(profile)
+    box.stubs(:environment).returns(Environment.default)
     block.stubs(:box).returns(box)
     assert_equal [], [a3] - block.articles_of_parent(a2)
     assert_equal [], block.articles_of_parent(a2) - [a3]
@@ -270,6 +272,7 @@ class DisplayContentBlockTest < ActiveSupport::TestCase
     box = mock()
     block.stubs(:box).returns(box)
     box.stubs(:owner).returns(environment)
+    box.stubs(:environment).returns(Environment.default)
     environment.stubs(:portal_community).returns(profile)
 
     assert_equal [], [a1, a2] - block.articles_of_parent
@@ -288,6 +291,7 @@ class DisplayContentBlockTest < ActiveSupport::TestCase
     box = mock()
     block.stubs(:box).returns(box)
     box.stubs(:owner).returns(environment)
+    box.stubs(:environment).returns(Environment.default)
     environment.stubs(:portal_community).returns(profile)
 
     assert_equal [], [a3] - block.articles_of_parent(a2)
@@ -301,6 +305,7 @@ class DisplayContentBlockTest < ActiveSupport::TestCase
     box = mock()
     block.stubs(:box).returns(box)
     box.stubs(:owner).returns(environment)
+    box.stubs(:environment).returns(Environment.default)
 
     assert_equal [], block.articles_of_parent()
   end
@@ -316,6 +321,7 @@ class DisplayContentBlockTest < ActiveSupport::TestCase
       block = DisplayContentBlock.new
       box = mock()
       box.stubs(:owner).returns(profile)
+      box.stubs(:environment).returns(Environment.default)
       block.stubs(:box).returns(box)
       assert_equal [], [a2] - block.articles_of_parent
       assert_equal [], block.articles_of_parent - [a2]
@@ -334,6 +340,7 @@ class DisplayContentBlockTest < ActiveSupport::TestCase
       block = DisplayContentBlock.new
       box = mock()
       box.stubs(:owner).returns(profile)
+      box.stubs(:environment).returns(Environment.default)
       block.stubs(:box).returns(box)
       assert_equal [a1], block.articles_of_parent
     end
@@ -526,4 +533,28 @@ class DisplayContentBlockTest < ActiveSupport::TestCase
     assert_equivalent [f1.id, a1.id, a2.id, a3.id], block.nodes
   end
 
+  should "test should return plugins articles in articles of parent method" do
+    class PluginArticle < Article; end
+
+    class Plugin1 < Noosfero::Plugin
+      def content_types
+        [PluginArticle]
+      end
+    end
+
+    profile = create_user('testuser').person
+    Article.delete_all
+    a1 = fast_create(PluginArticle, :name => 'test article 1', :profile_id => profile.id)
+
+    env = fast_create(Environment)
+    env.enable_plugin(Plugin1)
+
+    block = DisplayContentBlock.new
+    box = mock()
+    box.stubs(:owner).returns(profile)
+    box.stubs(:environment).returns(env)
+    block.stubs(:box).returns(box)
+    assert_equal [a1], block.articles_of_parent
+  end
+
 end
--
libgit2 0.21.2