diff --git a/src/http/ngx_http_upstream.c b/src/http/ngx_http_upstream.c
index 736ab63..224499b 100644
--- a/src/http/ngx_http_upstream.c
+++ b/src/http/ngx_http_upstream.c
@@ -284,10 +284,6 @@
                  ngx_http_upstream_process_vary, 0,
                  ngx_http_upstream_copy_header_line, 0, 0 },
 
-    { ngx_string("X-Powered-By"),
-                 ngx_http_upstream_ignore_header_line, 0,
-                 ngx_http_upstream_copy_header_line, 0, 0 },
-
     { ngx_string("X-Accel-Expires"),
                  ngx_http_upstream_process_accel_expires, 0,
                  ngx_http_upstream_copy_header_line, 0, 0 },