diff --git a/content/en/guide/v10/unit-testing-with-enzyme.md b/content/en/guide/v10/unit-testing-with-enzyme.md
index ba51fc221..9d333aa3d 100644
--- a/content/en/guide/v10/unit-testing-with-enzyme.md
+++ b/content/en/guide/v10/unit-testing-with-enzyme.md
@@ -44,7 +44,7 @@ adapter:
 import { configure } from 'enzyme';
 import Adapter from 'enzyme-adapter-preact-pure';
 
-configure({ adapter: new Adapter });
+configure({ adapter: new Adapter() });
 ```
 
 For guidance on using Enzyme with different test runners, see the