diff --git a/doc/api/test.md b/doc/api/test.md
index a6b8ab26a50051..e86e8999316b20 100644
--- a/doc/api/test.md
+++ b/doc/api/test.md
@@ -2030,7 +2030,8 @@ Emitted when a test is enqueued for execution.
 * `data` {Object}
   * `details` {Object} Additional execution metadata.
     * `duration` {number} The duration of the test in milliseconds.
-    * `error` {Error} The error thrown by the test.
+    * `error` {Error} An error wrapping the error thrown by the test.
+      * `cause` {Error} The actual error thrown by the test.
   * `file` {string|undefined} The path of the test file,
     `undefined` if test was run through the REPL.
   * `name` {string} The test name.