diff --git a/types/office-js/index.d.ts b/types/office-js/index.d.ts
index 999e1c2b5c..51f6c8a3fc 100644
--- a/types/office-js/index.d.ts
+++ b/types/office-js/index.d.ts
@@ -7351,7 +7351,7 @@ declare namespace Office {
 declare namespace Office {
     namespace MailboxEnums {
         /**
-         * Specifies which string formatting to apply to an attachment's content.
+         * Specifies the formatting that applies to an attachment's content.
          * 
          * [Api set: Mailbox Preview]
          *