diff --git a/rest_framework/decorators.py b/rest_framework/decorators.py
index 44ecb4b9d..fb33d83c1 100644
--- a/rest_framework/decorators.py
+++ b/rest_framework/decorators.py
@@ -157,9 +157,7 @@ def action(methods=None, detail=None, name=None, url_path=None, url_name=None, *
             'description': func.__doc__ or None
         })
         if 'suffix' not in kwargs:
-            func.kwargs.update({
-                'name': func.name,
-            })
+            func.kwargs['name'] = func.name
 
         return func
     return decorator