diff --git a/doc/docker/nginx.conf b/doc/docker/nginx.conf
index 192ecbc278..39b0bb554c 100644
--- a/doc/docker/nginx.conf
+++ b/doc/docker/nginx.conf
@@ -36,7 +36,7 @@ server {
 		try_files $uri $uri/ =404;
 		location ~ ^/egroupware(/(?U).+\.php) {
 			# do not allow to call files ment to be included only
-			location ~ /(src|setup|inc|vendor)/ {
+			location ~ ^$path/(vendor|[^/]+/(src|setup|inc))/ {
 				return 403;
 			}
 			alias  /usr/share/egroupware;