diff --git a/test/parallel/test-assert.js b/test/parallel/test-assert.js
index ad465d76aef57c..eda477163cd9b5 100644
--- a/test/parallel/test-assert.js
+++ b/test/parallel/test-assert.js
@@ -690,7 +690,7 @@ try {
         code: 'ERR_INVALID_ARG_TYPE',
         type: TypeError,
         message: 'The "block" argument must be of type Function. Received ' +
-                 'type ' + typeName(block)
+                 `type ${typeName(block)}`
       })(e);
     }