diff --git a/django/forms/widgets.py b/django/forms/widgets.py
index 1b1c1439cb..67e44829ff 100644
--- a/django/forms/widgets.py
+++ b/django/forms/widgets.py
@@ -620,8 +620,6 @@ class ChoiceWidget(Widget):
 
     def create_option(self, name, value, label, selected, index, subindex=None, attrs=None):
         index = str(index) if subindex is None else "%s_%s" % (index, subindex)
-        if attrs is None:
-            attrs = {}
         option_attrs = self.build_attrs(self.attrs, attrs) if self.option_inherits_attrs else {}
         if selected:
             option_attrs.update(self.checked_attribute)