diff --git a/main.rmanifest.js b/main.rmanifest.js
index c991baa..087be15 100644
--- a/main.rmanifest.js
+++ b/main.rmanifest.js
@@ -54,7 +54,7 @@ class Manifest {
         const defaultOptionsPath = `${install_path}/default_options.txt`
         const finalOptionsPath = `${install_path}/options.txt`
 
-        fs.copyFileSync(defaultOptionsPath, finalOptionsPath)
+        Lib.fs.copyFileSync(defaultOptionsPath, finalOptionsPath)
     }
 
     async execute() {