diff --git a/doc/api/child_process.md b/doc/api/child_process.md
index 57a0f9296a46d9..4f8089ccc72a40 100644
--- a/doc/api/child_process.md
+++ b/doc/api/child_process.md
@@ -223,8 +223,9 @@ the existing process and uses a shell to execute the command.
 
 If this method is invoked as its [`util.promisify()`][]ed version, it returns
 a Promise for an object with `stdout` and `stderr` properties. In case of an
-error, a rejected promise is returned, with the same `error` object given in the
-callback, but with an additional two properties `stdout` and `stderr`.
+error (including any error resulting in an exit code other than 0), a rejected
+promise is returned, with the same `error` object given in the callback, but
+with an additional two properties `stdout` and `stderr`.
 
 ```js
 const util = require('util');
@@ -301,7 +302,8 @@ encoding, `Buffer` objects will be passed to the callback instead.
 
 If this method is invoked as its [`util.promisify()`][]ed version, it returns
 a Promise for an object with `stdout` and `stderr` properties. In case of an
-error, a rejected promise is returned, with the same `error` object given in the
+error (including any error resulting in an exit code other than 0), a rejected
+promise is returned, with the same `error` object given in the
 callback, but with an additional two properties `stdout` and `stderr`.
 
 ```js