diff --git a/src/node/src/server.js b/src/node/src/server.js
index 8a7eff507d03a..a5a0ea264203f 100644
--- a/src/node/src/server.js
+++ b/src/node/src/server.js
@@ -728,7 +728,7 @@ var defaultHandler = {
  *     method implementation for the provided service.
  */
 Server.prototype.addService = function(service, implementation) {
-  if (!_.isObjectLike(service) || !_.isObjectLike(implementation)) {
+  if (!_.isObject(service) || !_.isObject(implementation)) {
     throw new Error('addService requires two objects as arguments');
   }
   if (_.keys(service).length === 0) {