diff --git a/.gitignore b/.gitignore
index 1156ada..80d512b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,4 @@
 node_modules/
 /dist/
+.id_rsa
+.id_rsa.pub
diff --git a/action.yml b/action.yml
index bcff476..396f821 100644
--- a/action.yml
+++ b/action.yml
@@ -11,6 +11,9 @@ inputs:
   destination:
     description: 'Destination path for the extracted files'
     required: false
+  shell_command:
+    description: 'The shell command to execute, defaults to `/bin/bash -c`'
+    required: false
 outputs:
   destination:
     description: 'Destination of extracted file(s)'