1 files changed, 1 insertions, 1 deletions
diff --git a/lib/book.js b/lib/book.js
index a2a11a7..914b48a 100644
--- a/lib/book.js
+++ b/lib/book.js
@@ -291,7 +291,7 @@ Book.prototype.isMultilingual = function() {
 Book.prototype.isInBook = function(filename) {
     return pathUtil.isInRoot(
         this.root,
-        this.resolve(filename)
+        filename
     );
 };