diff --git a/docs/gantt.md b/docs/gantt.md
index 321bb5712..542f3a43e 100755
--- a/docs/gantt.md
+++ b/docs/gantt.md
@@ -45,7 +45,8 @@ gantt
 
        dateFormat                :YYYY-MM-DD
        title                     :Adding GANTT diagram functionality to mermaid
-       excludes                  :excludes the named objects from being charted. Accepts specific dates in YY-MM-DD format, days of the week ("sunday") or "weekends", but not the word "weekdays". 
+       excludes                  :excludes the named dates/days from being included in a charted task.. 
+       (Accepts specific dates in YYYY-MM-DD format, days of the week ("sunday") or "weekends", but not the word "weekdays".) 
        section A section
        Completed task            :done,    des1, 2014-01-06,2014-01-08
        Active task               :active,  des2, 2014-01-09, 3d