diff --git a/plugins/require_auth_to_comment/lib/require_auth_to_comment_plugin.rb b/plugins/require_auth_to_comment/lib/require_auth_to_comment_plugin.rb
index 157b96b..9f49580 100644
--- a/plugins/require_auth_to_comment/lib/require_auth_to_comment_plugin.rb
+++ b/plugins/require_auth_to_comment/lib/require_auth_to_comment_plugin.rb
@@ -38,7 +38,7 @@ class RequireAuthToCommentPlugin < Noosfero::Plugin
   end
 
   def body_beginning
-    "<meta name='profile.allow_unauthenticated_comments'/>" if allowed_by_profile
+    tag :meta, name: 'profile.allow_unauthenticated_comments' if allowed_by_profile
   end
 
   protected
diff --git a/plugins/responsive/views/layouts/application-responsive.html.erb b/plugins/responsive/views/layouts/application-responsive.html.erb
index ad96fd6..758bd01 100644
--- a/plugins/responsive/views/layouts/application-responsive.html.erb
+++ b/plugins/responsive/views/layouts/application-responsive.html.erb
@@ -36,7 +36,7 @@
     <%=
       @plugins.dispatch(:body_beginning).map do |content|
         if content.respond_to?(:call) then instance_exec(&content).to_s.html_safe else content.to_s.html_safe end
-      end.join("\n")
+      end.safe_join
     %>
     <div id="global-header">
       <%= global_header %>
--
libgit2 0.21.2