diff --git a/install/debian/nginx.conf b/install/debian/nginx.conf
index dc6f63f4..91a43671 100644
--- a/install/debian/nginx.conf
+++ b/install/debian/nginx.conf
@@ -82,6 +82,7 @@ http {
 
     # Cache
     proxy_cache_path /var/cache/nginx levels=2 keys_zone=cache:10m inactive=60m max_size=512m;
+    proxy_cache_key "$host$request_uri $cookie_user";
     proxy_temp_path  /var/cache/nginx/temp;
     proxy_ignore_headers Expires Cache-Control;
     proxy_cache_use_stale error timeout invalid_header http_502;
diff --git a/install/ubuntu/nginx.conf b/install/ubuntu/nginx.conf
index f33a8f7b..0852c60f 100644
--- a/install/ubuntu/nginx.conf
+++ b/install/ubuntu/nginx.conf
@@ -82,6 +82,7 @@ http {
 
     # Cache
     proxy_cache_path /var/cache/nginx levels=2 keys_zone=cache:10m inactive=60m max_size=512m;
+    proxy_cache_key "$host$request_uri $cookie_user";
     proxy_temp_path  /var/cache/nginx/temp;
     proxy_ignore_headers Expires Cache-Control;
     proxy_cache_use_stale error timeout invalid_header http_502;