diff --git a/django/contrib/admin/sites.py b/django/contrib/admin/sites.py
index 52ef57370d..68621e333e 100644
--- a/django/contrib/admin/sites.py
+++ b/django/contrib/admin/sites.py
@@ -452,7 +452,7 @@ class AdminSite(object):
         import warnings
         warnings.warn(
             "AdminSite.root() is deprecated; use include(admin.site.urls) instead.",
-            PendingDeprecationWarning
+            DeprecationWarning
         )
 
         #