diff --git a/django/db/models/fields/__init__.py b/django/db/models/fields/__init__.py
index 4640eb3238..3c58873035 100644
--- a/django/db/models/fields/__init__.py
+++ b/django/db/models/fields/__init__.py
@@ -459,6 +459,9 @@ class AutoField(Field):
         kwargs['blank'] = True
         Field.__init__(self, *args, **kwargs)
 
+    def get_internal_type(self):
+        return "AutoField"
+
     def to_python(self, value):
         if value is None:
             return value