diff --git a/scripts/core/storage.ts b/scripts/core/storage.ts
index e1831a6254..128ae3ba4f 100644
--- a/scripts/core/storage.ts
+++ b/scripts/core/storage.ts
@@ -7,7 +7,7 @@ export class Storage {
   rootDir: string
 
   constructor(rootDir?: string) {
-    this.rootDir = rootDir || './'
+    this.rootDir = path.normalize(rootDir || './')
   }
 
   list(pattern: string): Promise<string[]> {