---
title: About duplicate issues and pull requests
intro: Mark an issue or pull request as a duplicate to track similar issues or pull requests together and remove unnecessary burden for both maintainers and collaborators.
redirect_from:
  - /articles/about-duplicate-issues-and-pull-requests
versions:
  free-pro-team: '*'
  enterprise-server: '*'
  github-ae: '*'
---

For a "marked as duplicate" timeline event to appear, the user who creates the duplicate reference comment must have write access to the repository where they create the comment.

### Marking duplicates

To mark an issue or pull request as a duplicate, type "Duplicate of" followed by the issue or pull request number it duplicates in the body of a new comment. You can also use the GitHub-provided "Duplicate issue" or "Duplicate pull request" saved replies to mark an issue or pull request as a duplicate. For more information, see "[About saved replies](/articles/about-saved-replies)."

![Duplicate issue syntax](/assets/images/help/issues/duplicate-issue-syntax.png)

### Unmarking duplicates

You can unmark duplicate issues and pull requests by clicking **Undo** in the timeline. This will add a new timeline event, indicating that the issue or pull request was unmarked.

![Unmark duplicate issue button](/assets/images/help/issues/unmark-duplicate-issue-button.png)