diff --git a/content/en/tests/setup/javascript.md b/content/en/tests/setup/javascript.md
index b999ff23dd3d5..9eb87cd3daddb 100644
--- a/content/en/tests/setup/javascript.md
+++ b/content/en/tests/setup/javascript.md
@@ -126,7 +126,7 @@ Just like tags, you can add custom measures to your tests by using the current a
 
 For more information about custom measures, see the [Add Custom Measures Guide][2].
 
-### Mocha ES modules
+### Mocha ECMAScript modules (ESM)
 [Mocha >=9.0.0][3] uses an ESM-first approach to load test files. Set `NODE_OPTIONS` to `-r dd-trace/ci/init --import dd-trace/register.js` to get full visibility into your tests. See [`dd-trace-js` ESM support][4] for more information.