diff --git a/docs/README.md b/docs/README.md
index 6641bceb2f..94ba703b22 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -23,7 +23,7 @@ To add an event:
       
 To add a deadline:
   
-    deadline [deadline description] /at [date]
+    deadline [deadline description] /by [date]
     
 You're encouraged to enter date in the format YYYY-MM-DD.