diff --git a/services/activitypub/create.go b/services/activitypub/create.go
index 082ebe71b5..220e3d6fc7 100644
--- a/services/activitypub/create.go
+++ b/services/activitypub/create.go
@@ -4,12 +4,15 @@
 package activitypub
 
 import (
+	user_model "code.gitea.io/gitea/models/user"
+	
 	ap "github.com/go-ap/activitypub"
 )
 
-func Create(to string, object ap.ObjectOrLink) *ap.Create {
+func Create(user *user_model.User, object ap.ObjectOrLink, to string) *ap.Create {
 	return &ap.Create{
 		Type:   ap.CreateType,
+		Actor:  ap.IRI(user.GetIRI()),
 		Object: object,
 		To:     ap.ItemCollection{ap.Item(ap.IRI(to))},
 	}
diff --git a/services/issue/comments.go b/services/issue/comments.go
index 506eafcf91..33c1bfd552 100644
--- a/services/issue/comments.go
+++ b/services/issue/comments.go
@@ -86,7 +86,7 @@ func CreateIssueComment(ctx context.Context, doer *user_model.User, repo *repo_m
 		if err != nil {
 			return nil, err
 		}
-		create := activitypub.Create(repo.OriginalURL+"/inbox", note)
+		create := activitypub.Create(doer, note, repo.OriginalURL+"/inbox")
 		err = activitypub.Send(doer, create)
 		if err != nil {
 			return nil, err
diff --git a/services/issue/issue.go b/services/issue/issue.go
index 61194bf1dd..b1b8db0f82 100644
--- a/services/issue/issue.go
+++ b/services/issue/issue.go
@@ -33,7 +33,8 @@ func NewIssue(repo *repo_model.Repository, issue *issues_model.Issue, labelIDs [
 		if err != nil {
 			return err
 		}
-		create := activitypub.Create(repo.OriginalURL+"/inbox", ticket)
+		issue.LoadPoster(db.DefaultContext)
+		create := activitypub.Create(issue.Poster, ticket, repo.OriginalURL+"/inbox")
 		err = activitypub.Send(issue.Poster, create)
 		if err != nil {
 			return err