diff --git a/README.md b/README.md
index 826bff9775b..713a7f4cc5e 100644
--- a/README.md
+++ b/README.md
@@ -144,7 +144,7 @@ Support this project with a :star:
 |    since\_last\_remote\_commit    |        `boolean`        | `false`  |        `false`        |       Use the last commit on the remote <br> branch as the `base_sha` <br> (Defaults to the last commit <br> on the target branch for Pull requests <br> or the previous commit <br> on the current branch <br> for push events). <br /> NOTE: This requires <br /> `fetch-depth: 0` <br /> with `actions/checkout@v2`        |
 |         use\_fork\_point          |        `boolean`        | `false`  |        `false`        |           Finds best common ancestor <br /> between two commits <br /> to use in a three-way merge <br /> as the `base_sha` <br /> See: [git merge-base](https://git-scm.com/docs/git-merge-base#Documentation/git-merge-base.txt---fork-point). <br> NOTE: This pulls the entire commit history of the base branch           |
 |             quotepath             |        `boolean`        | `false`  |        `true`         |                                                                                                                                Output filenames completely verbatim by setting this to `false`                                                                                                                                |
-|             diff_relative             |        `boolean`        | `false`  |        ``         |                                                                                                                                Exclude changes outside the current directory and show pathnames relative to it.                                                                                                                                |
+|             diff\_relative             |        `boolean`        | `false`  |                   |                                                                                                                                Exclude changes outside the current directory and show pathnames relative to it.                                                                                                                                |
 
 ## Examples