diff --git a/README.md b/README.md
index c1c97fdb..6df705b1 100644
--- a/README.md
+++ b/README.md
@@ -24,6 +24,7 @@ GitHub Action for installing development tools (mainly from GitHub Releases).
 | ---- | :------: | ----------- | ---- | ------- |
 | tool | **✓** | Tools to install (whitespace or comma separated list) | String | |
 | checksum | | Whether to enable checksums (strongly discouraged to disable) | Boolean | `true` |
+| fallback | | Whether to use fallback (none, cargo-binstall, or cargo-install) | String | `cargo-binstall` |
 
 ### Example workflow
 
diff --git a/action.yml b/action.yml
index 56e9ce34..81aa5102 100644
--- a/action.yml
+++ b/action.yml
@@ -11,7 +11,7 @@ inputs:
     required: false
     default: 'true'
   fallback:
-    description: Whether to use fallback (none, cargo-binstall, cargo-install)
+    description: Whether to use fallback (none, cargo-binstall, or cargo-install)
     required: false
     default: 'cargo-binstall'