diff --git a/transport/ssr/obfs/http_simple.go b/transport/ssr/obfs/http_simple.go
index d59b490d..42f51a9b 100644
--- a/transport/ssr/obfs/http_simple.go
+++ b/transport/ssr/obfs/http_simple.go
@@ -129,7 +129,7 @@ func (c *httpConn) Write(b []byte) (int, error) {
 	buf.Write(b)
 	_, err := c.Conn.Write(buf.Bytes())
 	if err != nil {
-		return 0, nil
+		return 0, err
 	}
 	c.hasSentHeader = true
 	return bLength, nil