diff --git a/README b/README
index 9ff94bf..8e22af2 100755
--- a/README
+++ b/README
@@ -38,6 +38,7 @@ Available configuration parameters:
                 This value will be updated by the program when it closes.
 'mailbox':      String giving the name of the mailbox directory to search for
                 the unread message count (if unspecified, uses "Inbox").
+                You may specify subfolders such as "Inbox/Folder".
 'mouse':        A hash which configures the actions for the program to take
                 in response to a mouse click. The keys of this hash can be
                 'left', 'middle', or 'right'. The values of the hash can take