diff --git a/src/http/ngx_http_upstream.h b/src/http/ngx_http_upstream.h
index ef460a488..01e2e1e51 100644
--- a/src/http/ngx_http_upstream.h
+++ b/src/http/ngx_http_upstream.h
@@ -53,7 +53,7 @@ typedef struct {
     ngx_uint_t                       status;
     time_t                           response_sec;
     ngx_uint_t                       response_msec;
-    off_t                           response_length;
+    off_t                            response_length;
 
     ngx_str_t                       *peer;
 } ngx_http_upstream_state_t;