diff --git a/src/http/modules/ngx_http_fastcgi_module.c b/src/http/modules/ngx_http_fastcgi_module.c
index a0a328fac..b912e19b7 100644
--- a/src/http/modules/ngx_http_fastcgi_module.c
+++ b/src/http/modules/ngx_http_fastcgi_module.c
@@ -417,7 +417,8 @@ static ngx_str_t  ngx_http_fastcgi_hide_headers[] = {
     ngx_string("X-Accel-Expires"),
     ngx_string("X-Accel-Redirect"),
     ngx_string("X-Accel-Limit-Rate"),
-    ngx_string("X-Accel-Buffer"),
+    ngx_string("X-Accel-Buffering"),
+    ngx_string("X-Accel-Charset"),
     ngx_null_string
 };
 
diff --git a/src/http/modules/ngx_http_proxy_module.c b/src/http/modules/ngx_http_proxy_module.c
index 0849668ee..d3f4c60ea 100644
--- a/src/http/modules/ngx_http_proxy_module.c
+++ b/src/http/modules/ngx_http_proxy_module.c
@@ -435,7 +435,8 @@ static ngx_str_t  ngx_http_proxy_hide_headers[] = {
     ngx_string("X-Accel-Expires"),
     ngx_string("X-Accel-Redirect"),
     ngx_string("X-Accel-Limit-Rate"),
-    ngx_string("X-Accel-Buffer"),
+    ngx_string("X-Accel-Buffering"),
+    ngx_string("X-Accel-Charset"),
     ngx_null_string
 };