diff --git a/lib/sender.js b/lib/sender.js
index ee16cea5a..472827155 100644
--- a/lib/sender.js
+++ b/lib/sender.js
@@ -551,7 +551,7 @@ class Sender {
   /**
    * Sends a frame.
    *
-   * @param {Buffer[]} list The frame to send
+   * @param {Array<Buffer | String>} list The frame to send
    * @param {Function} [cb] Callback
    * @private
    */