diff --git a/slackevents/inner_events.go b/slackevents/inner_events.go
index 6dbdb05f..03cdc46b 100644
--- a/slackevents/inner_events.go
+++ b/slackevents/inner_events.go
@@ -472,6 +472,7 @@ type File struct {
 	DisplayAsBot       bool   `json:"display_as_bot"`
 	Username           string `json:"username"`
 	URLPrivate         string `json:"url_private"`
+	FileAccess         string `json:"file_access"`
 	URLPrivateDownload string `json:"url_private_download"`
 	Thumb64            string `json:"thumb_64"`
 	Thumb80            string `json:"thumb_80"`