--- a/src/http/ngx_http_special_response.c
+++ b/src/http/ngx_http_special_response.c
@@ -609,42 +609,26 @@ static ngx_int_t
 ngx_http_send_special_response(ngx_http_request_t *r,
     ngx_http_core_loc_conf_t *clcf, ngx_uint_t err)
 {
+    u_char       *tail;
+    size_t        len;
     ngx_int_t     rc;
-    ngx_str_t     tail, tokens;
     ngx_buf_t    *b;
     ngx_uint_t    msie_padding;
     ngx_chain_t   out[3];
 
+    if (clcf->server_tokens) {
+        len = sizeof(ngx_http_error_full_tail) - 1;
+        tail = ngx_http_error_full_tail;
+
+    } else {
+        len = sizeof(ngx_http_error_tail) - 1;
+        tail = ngx_http_error_tail;
+    }
+
     msie_padding = 0;
 
     if (ngx_http_error_pages[err].len) {
-
-        if (clcf->server_tokens == 0) {
-            ngx_str_set(&tail, ngx_http_error_tail);
-
-        } else if (clcf->server_tokens == 1) {
-            ngx_str_set(&tail, ngx_http_error_full_tail);
-
-        } else {
-            if (ngx_http_complex_value(r, &clcf->server_tokens_value, &tokens)
-                != NGX_OK)
-            {
-                return NGX_ERROR;
-            }
-
-            if (tokens.len == 0
-                || (tokens.len == 3 && ngx_strncmp(tokens.data, "off", 3) == 0))
-            {
-                ngx_str_set(&tail, ngx_http_error_tail);
-
-            } else {
-                ngx_str_set(&tail, ngx_http_error_full_tail);
-            }
-        }
-
-        r->headers_out.content_length_n = ngx_http_error_pages[err].len
-                                          + tail.len;
-
+        r->headers_out.content_length_n = ngx_http_error_pages[err].len + len;
         if (clcf->msie_padding
             && (r->headers_in.msie || r->headers_in.chrome)
             && r->http_version >= NGX_HTTP_VERSION_10
@@ -661,10 +645,6 @@ ngx_http_send_special_response(ngx_http_
 
     } else {
         r->headers_out.content_length_n = 0;
-
-#if (NGX_SUPPRESS_WARN)
-        ngx_str_null(&tail);
-#endif
     }
 
     if (r->headers_out.content_length) {
@@ -704,8 +684,9 @@ ngx_http_send_special_response(ngx_http_
     }
 
     b->memory = 1;
-    b->pos = tail.data;
-    b->last = tail.data + tail.len;
+
+    b->pos = tail;
+    b->last = tail + len;
 
     out[1].buf = b;
     out[1].next = NULL;