diff --git a/conf/nginx.conf b/conf/nginx.conf
index 1133678..4e381f3 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -41,7 +41,7 @@ location __PATH__/ {
     location ~ ^/(images|static)/ {
         root /app;
         try_files $uri =404;
-        more_set_headers X-Cache-Status STATIC;
+        more_set_headers "X-Cache-Status STATIC";
         access_log off;
     }