---
title: Using keywords in issues and pull requests
intro: Use keywords to link an issue and pull request or to mark an issue or pull request as a duplicate.
versions:
  fpt: '*'
  ghes: '*'
  ghae: '*'
  ghec: '*'
redirect_from:
  - /github/writing-on-github/working-with-advanced-formatting/using-keywords-in-issues-and-pull-requests
topics:
  - Issues
  - Pull requests
---

## Linking a pull request to an issue

To link a pull request to an issue to show that a fix is in progress and to automatically close the issue when someone merges the pull request, type one of the following keywords followed by a reference to the issue. For example, `Closes #10` or `Fixes octo-org/octo-repo#100`.

- close
- closes
- closed
- fix
- fixes
- fixed
- resolve
- resolves
- resolved

For more information, see "[AUTOTITLE](/issues/tracking-your-work-with-issues/linking-a-pull-request-to-an-issue)."

## Marking an issue or pull request as a duplicate

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. For more information, see "[AUTOTITLE](/issues/tracking-your-work-with-issues/marking-issues-or-pull-requests-as-a-duplicate)."