diff --git a/mypy.ini b/mypy.ini
index 3f144e61fb..5a77a56319 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -62,9 +62,6 @@ disallow_untyped_defs = False
 [mypy-tests.unittest]
 disallow_untyped_defs = False
 
-[mypy-tests.util.caches.test_descriptors]
-disallow_untyped_defs = False
-
 ;; Dependencies without annotations
 ;; Before ignoring a module, check to see if type stubs are available.
 ;; The `typeshed` project maintains stubs here: