diff --git a/phpBB/docs/nginx.sample.conf b/phpBB/docs/nginx.sample.conf
index 9005432dec..23c81f02cb 100644
--- a/phpBB/docs/nginx.sample.conf
+++ b/phpBB/docs/nginx.sample.conf
@@ -62,7 +62,7 @@ http {
         }
 
         # Deny access to internal phpbb files.
-        location ~ /(config\.php|common\.php|cache|files|images/avatars/upload|includes|(?<!ext/)phpbb|store|vendor) {
+        location ~ /(config\.php|common\.php|cache|files|images/avatars/upload|includes|(?<!ext/)phpbb(?!\w+)|store|vendor) {
             deny all;
             # deny was ignored before 0.8.40 for connections over IPv6.
             # Use internal directive to prohibit access on older versions.