diff --git a/posts.go b/posts.go
index 35e9bd3..5d9b9f8 100644
--- a/posts.go
+++ b/posts.go
@@ -1182,7 +1182,7 @@ func (p *PublicPost) ActivityObject(app *App) *activitystreams.Object {
 		actorIRI, err := app.db.GetProfilePageFromHandle(app, handle)
 		if err != nil {
 			log.Info("Can't find this user either in the database nor in the remote instance")
-			return nil
+			continue
 		}
 		mentionedUsers[handle] = actorIRI
 	}