diff --git a/guidelines/sc/20/timing-adjustable.html b/guidelines/sc/20/timing-adjustable.html
index 5e23ac9aaa..ba22e413c2 100644
--- a/guidelines/sc/20/timing-adjustable.html
+++ b/guidelines/sc/20/timing-adjustable.html
@@ -32,7 +32,8 @@ <h4>Timing Adjustable</h4>
          
          <p>The user is warned before time expires and given at least 20 seconds to extend the
             time limit with a simple action (for example, "press the space bar"), and the user
-            is allowed to extend the time limit at least ten times; or
+            is given at least ten opportunities to extend the time limit (with each extension having the
+            same duration as the original time limit); or
          </p>
          
       </dd>