1 files changed, 2 insertions, 1 deletions
diff --git a/activesupport/lib/active_support/core_ext/hash/indifferent_access.rb b/activesupport/lib/active_support/core_ext/hash/indifferent_access.rb
index c96e63b169..adfba0fbf3 100644
--- a/activesupport/lib/active_support/core_ext/hash/indifferent_access.rb
+++ b/activesupport/lib/active_support/core_ext/hash/indifferent_access.rb
@@ -14,13 +14,14 @@ class HashWithIndifferentAccess < Hash
   end  
 
   alias_method :regular_writer, :[]= unless method_defined?(:regular_writer)
+  alias_method :regular_update, :update unless method_defined?(:regular_update)
   
   def []=(key, value)
     regular_writer(convert_key(key), convert_value(value))
   end
 
   def update(other_hash)
-    other_hash.each {|key, value| self[key] = value}
+    other_hash.each_pair {|key, value| regular_writer(convert_key(key), convert_value(value))}
     self
   end
   alias_method :merge!, :update