diff --git a/lib/noosfero/plugin/manager.rb b/lib/noosfero/plugin/manager.rb
index 479eb27..59179d2 100644
--- a/lib/noosfero/plugin/manager.rb
+++ b/lib/noosfero/plugin/manager.rb
@@ -38,6 +38,8 @@ class Noosfero::Plugin::Manager
   end
 
   def result_for plugin, event, *args
+    # check if defined to avoid crash, as there is hotspots using method_missing
+    return unless plugin.respond_to? event
     method = plugin.method event
     method.call *args if method.owner != Noosfero::Plugin
   end
diff --git a/test/unit/plugin_manager_test.rb b/test/unit/plugin_manager_test.rb
index 70697f3..2de9ceb 100644
--- a/test/unit/plugin_manager_test.rb
+++ b/test/unit/plugin_manager_test.rb
@@ -178,6 +178,15 @@ class PluginManagerTest < ActiveSupport::TestCase
     assert_equal Plugin2, manager.fetch_first_plugin(:random_event)
   end
 
+  should 'return nil if missing method is called' do
+    class Plugin1 < Noosfero::Plugin
+    end
+    Noosfero::Plugin.stubs(:all).returns(['PluginManagerTest::Plugin1'])
+    environment.enable_plugin(Plugin1)
+
+    assert_equal nil, @manager.result_for(Plugin1.new, :content_remove_new)
+  end
+
   should 'parse macro' do
     class Plugin1 < Noosfero::Plugin
       def macros
--
libgit2 0.21.2