diff --git a/lib/util.js b/lib/util.js
index 6238ff44bf6e15..99c7e5e9e056c5 100644
--- a/lib/util.js
+++ b/lib/util.js
@@ -1054,7 +1054,7 @@ 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;