1 files changed, 2 insertions, 1 deletions
diff --git a/test/parallel/test-dgram-custom-lookup.js b/test/parallel/test-dgram-custom-lookup.js
index df715f81d6..ae62328364 100644
--- a/test/parallel/test-dgram-custom-lookup.js
+++ b/test/parallel/test-dgram-custom-lookup.js
@@ -40,7 +40,8 @@ const dns = require('dns');
     }, {
       code: 'ERR_INVALID_ARG_TYPE',
       type: TypeError,
-      message: 'The "lookup" argument must be of type Function'
+      message: 'The "lookup" argument must be of type Function. ' +
+               `Received type ${typeof value}`
     });
   });
 }