diff --git a/django/db/models/fields/subclassing.py b/django/db/models/fields/subclassing.py
index 84d13ce85c..b8d3d10388 100644
--- a/django/db/models/fields/subclassing.py
+++ b/django/db/models/fields/subclassing.py
@@ -19,7 +19,7 @@ class SubfieldBase(type):
     """
     def __new__(cls, name, bases, attrs):
         warnings.warn("SubfieldBase has been deprecated. Use Field.from_db_value instead.",
-                  RemovedInDjango110Warning)
+                  RemovedInDjango110Warning, stacklevel=2)
 
         new_class = super(SubfieldBase, cls).__new__(cls, name, bases, attrs)
         new_class.contribute_to_class = make_contrib(