diff --git a/lib/util.js b/lib/util.js
index fea6471de6260b..ea6a78334a09ba 100644
--- a/lib/util.js
+++ b/lib/util.js
@@ -1053,7 +1053,7 @@ exports._exceptionWithHostPort = function(err,
 
 // process.versions needs a custom function as some values are lazy-evaluated.
 process.versions[exports.inspect.custom] =
-  (depth) => exports.format(JSON.parse(JSON.stringify(process.versions)));
+  () => exports.format(JSON.parse(JSON.stringify(process.versions)));
 
 exports.promisify = internalUtil.promisify;