diff --git a/django/library/views.py b/django/library/views.py
index db38b5e..6dcee8d 100644
--- a/django/library/views.py
+++ b/django/library/views.py
@@ -488,7 +488,11 @@ def copy_quiz(request, pk):
     new_quiz.base_quiz_id = pk
     new_quiz.rating_count = 0
     new_quiz.average_rating = 3.0
-    new_quiz.published_at = timezone.now() 
+    if original_quiz.published_at:
+        new_quiz.published_at = timezone.now()
+    else:
+        new_quiz.published_at = None
+
     new_quiz.save()  # Speichern als neues Objekt 
    # Optional: Beschreibung anpassen
     # Alle zugehörigen Fragen kopieren