diff --git a/httputils/nethttp.go b/httputils/nethttp.go
index 8701d8c..b2bf296 100644
--- a/httputils/nethttp.go
+++ b/httputils/nethttp.go
@@ -152,10 +152,10 @@ func (c *NetHTTPContext) ServeStream(stream Stream) {
 				return
 			}
 
-			c.SetResponseHeader("Content-Length", strconv.FormatInt(size, 10))
 			c.SetResponseHeader("Content-Range", fmt.Sprintf("bytes %d-%d/%d", rangeStart, rangeStart+rangeLength-1, size))
-			c.SetResponseCode(fasthttp.StatusPartialContent)
 			size = rangeLength
+			c.SetResponseHeader("Content-Length", strconv.FormatInt(size, 10))
+			c.SetResponseCode(fasthttp.StatusPartialContent)
 		} else {
 			c.SetResponseHeader("Content-Length", strconv.FormatInt(size, 10))
 			c.SetResponseCode(fasthttp.StatusOK)