diff --git a/todo.sh b/todo.sh
index 060e185..3ab57a1 100755
--- a/todo.sh
+++ b/todo.sh
@@ -102,8 +102,8 @@ help()
           Deprioritizes (removes the priority) from the item
           on line NUMBER in todo.txt.
 
-        do NUMBER
-          Marks item on line NUMBER as done in todo.txt.
+        do NUMBER[, NUMBER, NUMBER, ...]
+          Marks item(s) on line NUMBER as done in todo.txt.
 
         help
           Display this help message.