diff --git a/README.md b/README.md
index 1bf4edd..3b454c0 100644
--- a/README.md
+++ b/README.md
@@ -62,7 +62,7 @@ There are several options to customize how the tag is created.
         package_root: "/path/to/subdirectory"
     ```
 
-1. `tag_prefx`
+1. `tag_prefix`
 
     By default, `package.json` uses [semantic versioning](https://semver.org/), such as `1.0.0`. A prefix can be used to add text before the tag name. For example, if `tag_prefx` is set to `v`, then the tag would be labeled as `v1.0.0`.
 
@@ -70,7 +70,7 @@ There are several options to customize how the tag is created.
     - uses: butlerlogic/action-autotag@1.0.0
       with:
         GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
-        tag_prefx: "v"
+        tag_prefix: "v"
     ```
 
 1. `tag_suffix`