diff --git a/django/contrib/localflavor/cz/forms.py b/django/contrib/localflavor/cz/forms.py
index 320a2a8c49..13a94af05c 100644
--- a/django/contrib/localflavor/cz/forms.py
+++ b/django/contrib/localflavor/cz/forms.py
@@ -73,7 +73,7 @@ class CZBirthNumberField(Field):
             import warnings
             warnings.warn(
                 "Support for validating the gender of a CZ Birth number has been deprecated.",
-                PendingDeprecationWarning)
+                DeprecationWarning)
             if gender == 'f':
                 female_const = 50
             elif gender == 'm':