diff --git a/admin_manual/installation/nginx-root.conf.sample b/admin_manual/installation/nginx-root.conf.sample
index b03e85379ee..8207dbb2fde 100644
--- a/admin_manual/installation/nginx-root.conf.sample
+++ b/admin_manual/installation/nginx-root.conf.sample
@@ -71,7 +71,6 @@ server {
     # HTTP response headers borrowed from Nextcloud `.htaccess`
     add_header Referrer-Policy                   "no-referrer"       always;
     add_header X-Content-Type-Options            "nosniff"           always;
-    add_header X-Download-Options                "noopen"            always;
     add_header X-Frame-Options                   "SAMEORIGIN"        always;
     add_header X-Permitted-Cross-Domain-Policies "none"              always;
     add_header X-Robots-Tag                      "noindex, nofollow" always;
diff --git a/admin_manual/installation/nginx-subdir.conf.sample b/admin_manual/installation/nginx-subdir.conf.sample
index 8453ed4c716..7c76372f81b 100644
--- a/admin_manual/installation/nginx-subdir.conf.sample
+++ b/admin_manual/installation/nginx-subdir.conf.sample
@@ -103,7 +103,6 @@ server {
         # HTTP response headers borrowed from Nextcloud `.htaccess`
         add_header Referrer-Policy                   "no-referrer"       always;
         add_header X-Content-Type-Options            "nosniff"           always;
-        add_header X-Download-Options                "noopen"            always;
         add_header X-Frame-Options                   "SAMEORIGIN"        always;
         add_header X-Permitted-Cross-Domain-Policies "none"              always;
         add_header X-Robots-Tag                      "noindex, nofollow" always;