1 files changed, 2 insertions, 2 deletions

diff --git a/server/controllers/activitypub/inbox.ts b/server/controllers/activitypub/inbox.ts
index 3b8fb34a8..c5edf86b7 100644
--- a/server/controllers/activitypub/inbox.ts
+++ b/server/controllers/activitypub/inbox.ts
@@ -56,9 +56,9 @@ function inboxController (req: express.Request, res: express.Response) {
   const rootActivity: RootActivity = req.body
   let activities: Activity[]
 
-  if ([ 'Collection', 'CollectionPage' ].indexOf(rootActivity.type) !== -1) {
+  if ([ 'Collection', 'CollectionPage' ].includes(rootActivity.type)) {
     activities = (rootActivity as ActivityPubCollection).items
-  } else if ([ 'OrderedCollection', 'OrderedCollectionPage' ].indexOf(rootActivity.type) !== -1) {
+  } else if ([ 'OrderedCollection', 'OrderedCollectionPage' ].includes(rootActivity.type)) {
     activities = (rootActivity as ActivityPubOrderedCollection<Activity>).orderedItems
   } else {
     activities = [ rootActivity as Activity ]