diff --git a/src/files.ts b/src/files.ts
index aa0fb30d..6b4b489d 100644
--- a/src/files.ts
+++ b/src/files.ts
@@ -6,7 +6,7 @@ import {
   getOctokit,
 } from "@actions/github";
 
-enum FileStatus {
+const enum FileStatus {
   /**
    * The file was added.
    */