diff --git a/models/repo.go b/models/repo.go
index 88e9f7174..c95c867f3 100644
--- a/models/repo.go
+++ b/models/repo.go
@@ -1824,6 +1824,8 @@ func DeleteRepository(doer *User, uid, repoID int64) error {
 		&PullRequest{BaseRepoID: repoID},
 		&RepoUnit{RepoID: repoID},
 		&RepoRedirect{RedirectRepoID: repoID},
+		&Webhook{RepoID: repoID},
+		&HookTask{RepoID: repoID},
 	); err != nil {
 		return fmt.Errorf("deleteBeans: %v", err)
 	}