diff --git a/config/http/default.nix b/config/http/default.nix
index 1753981..ffd1e1e 100644
--- a/config/http/default.nix
+++ b/config/http/default.nix
@@ -16,6 +16,7 @@ in {
     recommendedBrotliSettings = true;
 
     appendHttpConfig = ''
+      add_header_inherit merge;
       add_header Content-Security-Policy "script-src 'self'; object-src 'none'; base-uri 'none';" always;
       add_header 'Referrer-Policy' 'origin-when-cross-origin';
       add_header X-Frame-Options DENY;