diff --git a/lib/child_process.js b/lib/child_process.js
index e3691639a9fddd..9eab95d83544be 100644
--- a/lib/child_process.js
+++ b/lib/child_process.js
@@ -88,6 +88,15 @@ const {
 
 const MAX_BUFFER = 1024 * 1024;
 
+/**
+ * Spawns a new Node.js insatnce
+ * using the execPath of the parent process
+ * @param {string} modulePath
+ * @param {string[]} args
+ * @param {Object} options
+ * @returns {ChildProcess}
+ */
+
 function fork(modulePath /* , args, options */) {
   validateString(modulePath, 'modulePath');
 
@@ -206,6 +215,16 @@ ObjectDefineProperty(exec, promisify.custom, {
   value: customPromiseExecFunction(exec)
 });
 
+/**
+ * Spawns the new specified excutable file
+ * as a new process
+ * @param {string} file
+ * @param {string[]} args
+ * @param {Object} options
+ * @param {Function} callback
+ * @returns {ChildProcess}
+ */
+
 function execFile(file /* , args, options, callback */) {
   let args = [];
   let callback;