1 files changed, 3 insertions, 4 deletions
diff --git a/lib/models/book.js b/lib/models/book.js
index 4dc0238..be055d7 100644
--- a/lib/models/book.js
+++ b/lib/models/book.js
@@ -206,13 +206,12 @@ Book.prototype.setSummary = function(summary) {
 /**
     Change log level
 
-    @param {Book} book
     @param {String} level
     @return {Book}
 */
-Book.setLogLevel = function setLogLevel(book, level) {
-    book.getLogger().setLevel(level);
-    return book;
+Book.prototype.setLogLevel = function(level) {
+    this.getLogger().setLevel(level);
+    return this;
 };
 
 /**