diff --git a/reposado.conf b/reposado.conf
index aff17f3..54fb2b3 100755
--- a/reposado.conf
+++ b/reposado.conf
@@ -34,4 +34,8 @@ server {
   if ($http_user_agent ~ "Darwin/15") {
     rewrite ^/index(.*)\.sucatalog$ /content/catalogs/others/index-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1$1.sucatalog last;
   }
+  ## 10.12.x - Sierra
+  if ($http_user_agent ~ "Darwin/16") {
+    rewrite ^/index(.*)\.sucatalog$ /content/catalogs/others/index-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog last;
+  } 
 }