diff --git a/requester.go b/requester.go
index e44dcb3..039aa2f 100644
--- a/requester.go
+++ b/requester.go
@@ -266,7 +266,8 @@ func (r *Requester) DoRequest(req *fasthttp.Request, resp *fasthttp.Response, rr
 	writeTo := io.Discard
 	if resp.StatusCode() >= 500 {
 		writeTo = r.errWriter
-		_, _ = r.errWriter.Write([]byte(fmt.Sprintf("\n%d %s\n", resp.StatusCode(), rr.cost)))
+		_, _ = r.errWriter.Write([]byte(fmt.Sprintf("\n%d %s", resp.StatusCode(), rr.cost)))
+		_, _ = r.errWriter.Write([]byte(fmt.Sprintf("%s\n", &resp.Header)))
 	}
 	err = resp.BodyWriteTo(writeTo)
 	if err != nil {