diff --git a/django/core/files/uploadhandler.py b/django/core/files/uploadhandler.py
index fa4d2df804b80..b93ff9446e5e0 100644
--- a/django/core/files/uploadhandler.py
+++ b/django/core/files/uploadhandler.py
@@ -13,7 +13,7 @@
 
 __all__ = ['UploadFileException','StopUpload', 'SkipFile', 'FileUploadHandler',
            'TemporaryFileUploadHandler', 'MemoryFileUploadHandler',
-           'load_handler']
+           'load_handler', 'StopFutureHandlers']
 
 class UploadFileException(Exception):
     """
@@ -44,7 +44,7 @@ class SkipFile(UploadFileException):
     This exception is raised by an upload handler that wants to skip a given file.
     """
     pass
-    
+
 class StopFutureHandlers(UploadFileException):
     """
     Upload handers that have handled a file and do not want future handlers to