diff --git a/lib/index.js b/lib/index.js
index 26a47d518..e91211f5f 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -71,7 +71,7 @@ module.exports = {
 					var output = args[1];
 
 					var book = new Book(input, _.extend({}, {
-						'logLevel': Book.LOG_LEVELS[(kwargs.log).toUpperCase()]
+						'logLevel': kwargs.log
 					}));
 
 					return book.parse()