diff --git a/django/contrib/admin/options.py b/django/contrib/admin/options.py
index 2071792bdb..3b899e552a 100644
--- a/django/contrib/admin/options.py
+++ b/django/contrib/admin/options.py
@@ -49,7 +49,7 @@ FORMFIELD_FOR_DBFIELD_DEFAULTS = {
     models.TextField:       {'widget': widgets.AdminTextareaWidget},
     models.URLField:        {'widget': widgets.AdminURLFieldWidget},
     models.IntegerField:    {'widget': widgets.AdminIntegerFieldWidget},
-    models.BigIntegerField: {'widget': widgets.AdminIntegerFieldWidget},
+    models.BigIntegerField: {'widget': widgets.AdminBigIntegerFieldWidget},
     models.CharField:       {'widget': widgets.AdminTextInputWidget},
     models.ImageField:      {'widget': widgets.AdminFileWidget},
     models.FileField:       {'widget': widgets.AdminFileWidget},
diff --git a/django/contrib/admin/static/admin/css/forms.css b/django/contrib/admin/static/admin/css/forms.css
index 9d39b3fe89..efec04b670 100644
--- a/django/contrib/admin/static/admin/css/forms.css
+++ b/django/contrib/admin/static/admin/css/forms.css
@@ -226,6 +226,10 @@ body.popup .submit-row {
     width: 5em;
 }
 
+.vBigIntegerField {
+    width: 10em;
+}
+
 .vForeignKeyRawIdAdminField {
     width: 5em;
 }
diff --git a/django/contrib/admin/widgets.py b/django/contrib/admin/widgets.py
index 29958b27a4..980863ed84 100644
--- a/django/contrib/admin/widgets.py
+++ b/django/contrib/admin/widgets.py
@@ -303,12 +303,17 @@ class AdminURLFieldWidget(forms.TextInput):
         super(AdminURLFieldWidget, self).__init__(attrs=final_attrs)
 
 class AdminIntegerFieldWidget(forms.TextInput):
+    class_name = 'vIntegerField'
+
     def __init__(self, attrs=None):
-        final_attrs = {'class': 'vIntegerField'}
+        final_attrs = {'class': self.class_name}
         if attrs is not None:
             final_attrs.update(attrs)
         super(AdminIntegerFieldWidget, self).__init__(attrs=final_attrs)
 
+class AdminBigIntegerFieldWidget(AdminIntegerFieldWidget):
+    class_name = 'vBigIntegerField'
+
 class AdminCommaSeparatedIntegerFieldWidget(forms.TextInput):
     def __init__(self, attrs=None):
         final_attrs = {'class': 'vCommaSeparatedIntegerField'}