diff --git a/django/core/cache/__init__.py b/django/core/cache/__init__.py
index 4cc742dedf..a30aa390ac 100644
--- a/django/core/cache/__init__.py
+++ b/django/core/cache/__init__.py
@@ -18,6 +18,7 @@ from django.conf import settings
 from django.core import signals
 from django.core.cache.backends.base import (
     InvalidCacheBackendError, CacheKeyWarning, BaseCache)
+from django.core.exceptions import ImproperlyConfigured
 from django.utils import importlib
 
 try: