diff --git a/lib/timers.js b/lib/timers.js
index 15700f5a1212ab..ff85a9f4b1d1e0 100644
--- a/lib/timers.js
+++ b/lib/timers.js
@@ -453,7 +453,7 @@ function rearm(timer, start = TimerWrap.now()) {
 }
 
 
-const clearTimeout = exports.clearTimeout = function(timer) {
+const clearTimeout = exports.clearTimeout = function clearTimeout(timer) {
   if (timer && timer._onTimeout) {
     timer._onTimeout = null;
     if (timer instanceof Timeout) {
@@ -465,7 +465,7 @@ const clearTimeout = exports.clearTimeout = function(timer) {
 };
 
 
-exports.setInterval = function(callback, repeat, arg1, arg2, arg3) {
+exports.setInterval = function setInterval(callback, repeat, arg1, arg2, arg3) {
   if (typeof callback !== 'function') {
     throw new ERR_INVALID_CALLBACK();
   }
@@ -774,7 +774,7 @@ setImmediate[internalUtil.promisify.custom] = function(value) {
 exports.setImmediate = setImmediate;
 
 
-exports.clearImmediate = function(immediate) {
+exports.clearImmediate = function clearImmediate(immediate) {
   if (!immediate || immediate._destroyed)
     return;