diff --git a/cps/editbooks.py b/cps/editbooks.py
index d6b18f93..c7321a2a 100644
--- a/cps/editbooks.py
+++ b/cps/editbooks.py
@@ -453,7 +453,8 @@ def upload_single_file(request, book, book_id):
                 "<a href=\"" + url_for('web.show_book', book_id=book.id) + "\">" + uploadText + "</a>")
 
             return uploader.process(
-                saved_filename, *os.path.splitext(requested_file.filename), config.config_rarfile_location)
+                saved_filename, *os.path.splitext(requested_file.filename),
+                rarExcecutable=config.config_rarfile_location)
 
 
 def upload_cover(request, book):