diff --git a/docs/index.md b/docs/index.md
index e322d9e589..fbe19224cb 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -665,7 +665,7 @@ $ mocha
 
 <h2 id="test-duration">Test duration</h2>
 
-Many reporters will display test duration and flag tests that are slow (default: 75ms), as shown here with the "spec" reporter:
+Many reporters will display test duration, as well as flagging tests that are slow, as shown here with the "spec" reporter: (Default is 75ms)
 
 ![test duration](images/reporter-spec-duration.png?withoutEnlargement&resize=920,9999){:class="screenshot"}