diff --git a/cookbooks/gitlab/templates/nginx.conf.erb b/cookbooks/gitlab/templates/nginx.conf.erb
index 11030bd..2df05bc 100644
--- a/cookbooks/gitlab/templates/nginx.conf.erb
+++ b/cookbooks/gitlab/templates/nginx.conf.erb
@@ -6,7 +6,7 @@ server {
   listen                *:8081;
 
   server_name           <%= node['config']['external_hostname'] %>;
-
+  underscores_in_headers  on; 
   access_log            /var/log/nginx/gitlab.access.log;
   error_log             /var/log/nginx/gitlab.error.log;
 
diff --git a/cookbooks/noosfero/templates/nginx.conf.erb b/cookbooks/noosfero/templates/nginx.conf.erb
index 34d4f6a..94b7d47 100644
--- a/cookbooks/noosfero/templates/nginx.conf.erb
+++ b/cookbooks/noosfero/templates/nginx.conf.erb
@@ -7,7 +7,7 @@ upstream noosfero {
 server {
   listen *:8080;
   server_name <%= node['config']['external_hostname'] %>;
-
+  underscores_in_headers  on;
   access_log            /var/log/nginx/noosfero.access.log;
   error_log             /var/log/nginx/noosfero.error.log;
 
--
libgit2 0.21.2