diff --git a/graphene_django/converter.py b/graphene_django/converter.py
index 29adc50..1f6fbec 100644
--- a/graphene_django/converter.py
+++ b/graphene_django/converter.py
@@ -166,13 +166,21 @@ def convert_field_to_string(field, registry=None):
     )
 
 
-#@convert_django_field.register(models.SmallAutoField)
 @convert_django_field.register(models.BigAutoField)
 @convert_django_field.register(models.AutoField)
 def convert_field_to_id(field, registry=None):
     return ID(description=get_django_field_description(field), required=not field.null)
 
 
+if hasattr(models, "SmallAutoField"):
+
+    @convert_django_field.register(models.SmallAutoField)
+    def convert_field_to_id(field, registry=None):
+        return ID(
+            description=get_django_field_description(field), required=not field.null
+        )
+
+
 @convert_django_field.register(models.UUIDField)
 def convert_field_to_uuid(field, registry=None):
     return UUID(
diff --git a/graphene_django/tests/test_converter.py b/graphene_django/tests/test_converter.py
index 29a5a59..afd744f 100644
--- a/graphene_django/tests/test_converter.py
+++ b/graphene_django/tests/test_converter.py
@@ -116,7 +116,7 @@ def test_should_big_auto_convert_id():
 
 
 def test_should_small_auto_convert_id():
-    if hasattr(models, 'SmallAutoField'):
+    if hasattr(models, "SmallAutoField"):
         assert_conversion(models.SmallAutoField, graphene.ID, primary_key=True)