diff --git a/src/backend/lib/library.py b/src/backend/lib/library.py
index e330780..3a362a7 100755
--- a/src/backend/lib/library.py
+++ b/src/backend/lib/library.py
@@ -285,7 +285,7 @@ class Catalogue:
         try:
             cover = book_zip.read(cover.name)
             return cover
-        except KeyError:
+        except Error as e:
             return False
 
     def compare_shelf_current(self):