diff --git a/src/bin/create-index.js b/src/bin/create-index.js
index 055d154..ba5a102 100644
--- a/src/bin/create-index.js
+++ b/src/bin/create-index.js
@@ -58,7 +58,7 @@ const argv = yargs
       alias: 'o',
       default: 'index.js',
       description: 'Output file',
-      type: 'string',
+      type: 'string'
     }
   })
   .example(