diff --git a/doc/option-definition.md b/doc/option-definition.md
index 3735e43..258e0f1 100644
--- a/doc/option-definition.md
+++ b/doc/option-definition.md
@@ -60,7 +60,6 @@ const fs = require('fs')
 
 class FileDetails {
   constructor (filename) {
-    const fs = require('fs')
     this.filename = filename
     this.exists = fs.existsSync(filename)
   }
diff --git a/lib/option-definition.js b/lib/option-definition.js
index d418f7b..0388a94 100644
--- a/lib/option-definition.js
+++ b/lib/option-definition.js
@@ -52,7 +52,6 @@ class OptionDefinition {
     *
     * class FileDetails {
     *   constructor (filename) {
-    *     const fs = require('fs')
     *     this.filename = filename
     *     this.exists = fs.existsSync(filename)
     *   }