diff --git a/config/nginx.sample.conf b/config/nginx.sample.conf
index d302c833b2f..c9eb893a7a0 100644
--- a/config/nginx.sample.conf
+++ b/config/nginx.sample.conf
@@ -96,7 +96,7 @@ server {
 
     location ~* assets/.*\.(eot|ttf|woff|woff2|ico)$ {
       expires 1y;
-      add_header Cache-Control public, immutable;
+      add_header Cache-Control public,immutable;
       add_header Access-Control-Allow-Origin *;
      }
 
@@ -116,20 +116,20 @@ server {
       # asset pipeline enables this
       # brotli_static on;
       gzip_static on;
-      add_header Cache-Control public, immutable;
+      add_header Cache-Control public,immutable;
       # TODO I don't think this break is needed, it just breaks out of rewrite
       break;
     }
 
     location ~ ^/plugins/ {
       expires 1y;
-      add_header Cache-Control public, immutable;
+      add_header Cache-Control public,immutable;
     }
 
     # cache emojis
     location ~ /_?emoji.*\.(png|gif|jpg|jpeg)$/ {
       expires 1y;
-      add_header Cache-Control public, immutable;
+      add_header Cache-Control public,immutable;
     }
 
     location ~ ^/uploads/ {
@@ -146,7 +146,7 @@ server {
       proxy_set_header X-Sendfile-Type X-Accel-Redirect;
       proxy_set_header X-Accel-Mapping $public/=/downloads/;
       expires 1y;
-      add_header Cache-Control public, immutable;
+      add_header Cache-Control public,immutable;
 
       ## optional upload anti-hotlinking rules
       #valid_referers none blocked mysite.com *.mysite.com;