diff --git a/conf/nginx.conf b/conf/nginx.conf
index 6675b12..c272291 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -130,9 +130,9 @@ location ~ ^/api/.*$ {
 
     # These settings prevent both NGINX and the API server
     # from setting the same headers and creating duplicates
-    proxy_hide_header Cross-Origin-Resource-Policy;
+    proxy_hide_header "Cross-Origin-Resource-Policy";
     more_set_headers "Cross-Origin-Resource-Policy: cross-origin";
-    proxy_hide_header Cross-Origin-Embedder-Policy;
+    proxy_hide_header "Cross-Origin-Embedder-Policy";
     more_set_headers "Cross-Origin-Embedder-Policy: require-corp";
 }