diff --git a/lib/internal/validators.js b/lib/internal/validators.js
index a50f8c0cd67a63..9aa61c88ff8919 100644
--- a/lib/internal/validators.js
+++ b/lib/internal/validators.js
@@ -273,7 +273,7 @@ const validateArray = hideStackFrames((value, name, minLength = 0) => {
 
 /**
  * @param {*} signal
- * @param {string} name
+ * @param {string} [name='signal']
  * @returns {asserts signal is keyof signals}
  */
 function validateSignalName(signal, name = 'signal') {
@@ -341,7 +341,7 @@ function validatePort(port, name = 'Port', allowZero = true) {
 
 /**
  * @callback validateAbortSignal
- * @param {string=} signal
+ * @param {*} signal
  * @param {string} name
  */