diff --git a/lib/internal/child_process.js b/lib/internal/child_process.js
index 748f14a283f05f..dada6b8cc5a1fd 100644
--- a/lib/internal/child_process.js
+++ b/lib/internal/child_process.js
@@ -352,7 +352,7 @@ function closePendingHandle(target) {
 }
 
 
-ChildProcess.prototype.spawn = function(options) {
+ChildProcess.prototype.spawn = function spawn(options) {
   let i = 0;
 
   validateObject(options, 'options');
@@ -490,7 +490,7 @@ function onSpawnNT(self) {
 }
 
 
-ChildProcess.prototype.kill = function(sig) {
+ChildProcess.prototype.kill = function kill(sig) {
 
   const signal = sig === 0 ? sig :
     convertToValidSignal(sig === undefined ? 'SIGTERM' : sig);
@@ -524,12 +524,12 @@ ChildProcess.prototype[SymbolDispose] = function() {
 };
 
 
-ChildProcess.prototype.ref = function() {
+ChildProcess.prototype.ref = function ref() {
   if (this._handle) this._handle.ref();
 };
 
 
-ChildProcess.prototype.unref = function() {
+ChildProcess.prototype.unref = function unref() {
   if (this._handle) this._handle.unref();
 };