diff --git a/data/nginx-relay/nginx.conf b/data/nginx-relay/nginx.conf
index 400120b..c7340c6 100644
--- a/data/nginx-relay/nginx.conf
+++ b/data/nginx-relay/nginx.conf
@@ -15,6 +15,7 @@ stream {
         cdn.signal.org                          signal-cdn;
         cdn2.signal.org                         signal-cdn2;
         api.directory.signal.org                directory;
+        cdsi.signal.org                         cdsi;
         contentproxy.signal.org                 content-proxy;
         uptime.signal.org                       uptime;
         api.backup.signal.org                   backup;
@@ -44,6 +45,10 @@ stream {
         server api.directory.signal.org:443;
     }
 
+    upstream cdsi {
+        server cdsi.signal.org:443;
+    }
+
     upstream content-proxy {
         server contentproxy.signal.org:443;
     }