diff --git a/doc/api/test.md b/doc/api/test.md
index 96290ab22fc56f..e1deef42794dcb 100644
--- a/doc/api/test.md
+++ b/doc/api/test.md
@@ -1955,7 +1955,7 @@ Emitted when a test is enqueued for execution.
 
 * `data` {Object}
   * `details` {Object} Additional execution metadata.
-    * `duration` {number} The duration of the test in milliseconds.
+    * `duration_ms` {number} The duration of the test in milliseconds.
     * `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,
@@ -1972,7 +1972,7 @@ Emitted when a test fails.
 
 * `data` {Object}
   * `details` {Object} Additional execution metadata.
-    * `duration` {number} The duration of the test in milliseconds.
+    * `duration_ms` {number} The duration of the test in milliseconds.
   * `file` {string|undefined} The path of the test file,
     `undefined` if test was run through the REPL.
   * `name` {string} The test name.