diff --git a/cps/static/js/reading/epub.js b/cps/static/js/reading/epub.js
index bae9f72b..8b7fb075 100644
--- a/cps/static/js/reading/epub.js
+++ b/cps/static/js/reading/epub.js
@@ -42,5 +42,4 @@ var reader;
             alert(error);
         });
     }
-    // reader.book.package.metadata.direction= "rtl"; wait for reader reader before changing reading direction
 })();
diff --git a/cps/updater.py b/cps/updater.py
index 9fe6e828..7af8649c 100644
--- a/cps/updater.py
+++ b/cps/updater.py
@@ -198,7 +198,7 @@ class Updater(threading.Thread):
         )
         additional_path = self.is_venv()
         if additional_path:
-            exclude = exclude + (additional_path)
+            exclude = exclude + (additional_path,)
         for root, dirs, files in os.walk(destination, topdown=True):
             for name in files:
                 old_list.append(os.path.join(root, name).replace(destination, ''))