# Amending a Past Commit
You realize the login form is missing a CSRF token. You fix `src/auth.rs` and check the status:
```
╭─ zz [local changes]
│ M src/auth.rs
│
│╭─ fa [feature-auth]
│● c2 add password validation
│● d0 add login form
├╯
│
● a1b2c3d (upstream) [origin/main] Latest upstream commit
```
You want to amend this change into the original "add login form" commit (`d0`), not create a new commit.
```bash
$ git loom fold src/auth.rs d0
```
This stages `src/auth.rs` and amends it into commit `d0`. The branch topology stays the same — the commit just gains the new changes.
If you've already staged the files you want to amend, you can use the single-argument form:
```bash
$ git add src/auth.rs
$ git loom fold d0
```
This folds only the staged changes — any unstaged modifications to the same files are preserved.
To amend **all** working tree changes into a commit at once:
```bash
$ git loom fold zz d0
```
> [!TIP]
> Use `git loom status -f d0` to see which files are in a commit before and after amending.
See also: [fold reference](../commands/fold.md)