diff --git a/cozy/view_model/library_view_model.py b/cozy/view_model/library_view_model.py
index a29e51ff..a2cb0cb2 100644
--- a/cozy/view_model/library_view_model.py
+++ b/cozy/view_model/library_view_model.py
@@ -96,8 +96,7 @@ def authors(self):
 
         authors = {
             book.author
-            for book
-            in self._model.books
+            for book in self._model.books
             if is_book_online(book) or show_offline_books or book.downloaded
         }
 
@@ -110,8 +109,7 @@ def readers(self):
 
         readers = {
             book.reader
-            for book
-            in self._model.books
+            for book in self._model.books
             if is_book_online(book) or show_offline_books or book.downloaded
         }