1 files changed, 1 insertions, 1 deletions

diff --git a/server/helpers/custom-validators/activitypub/misc.ts b/server/helpers/custom-validators/activitypub/misc.ts
index 665a63a73..f09a764b6 100644
--- a/server/helpers/custom-validators/activitypub/misc.ts
+++ b/server/helpers/custom-validators/activitypub/misc.ts
@@ -21,7 +21,7 @@ function isActivityPubUrlValid (url: string) {
 }
 
 function isBaseActivityValid (activity: any, type: string) {
-  return Array.isArray(activity['@context']) &&
+  return (activity['@context'] === undefined || Array.isArray(activity['@context'])) &&
     activity.type === type &&
     isActivityPubUrlValid(activity.id) &&
     isActivityPubUrlValid(activity.actor) &&