diff --git a/django/template/context.py b/django/template/context.py
index 6ba53f3..86b7cbe 100644
--- a/django/template/context.py
+++ b/django/template/context.py
@@ -100,4 +100,4 @@ class RequestContext(Context):
         else:
             processors = tuple(processors)
         for processor in get_standard_processors() + processors:
-            self.update(processor(request))
+            self.dicts[0].update(processor(request))