diff --git a/actionpack/CHANGELOG b/actionpack/CHANGELOG
index 20172f4a28..ab5cdd3b3b 100644
--- a/actionpack/CHANGELOG
+++ b/actionpack/CHANGELOG
@@ -1,5 +1,7 @@
 *SVN*
 
+* Fix invalid test fixture exposed by stricter Ruby 1.8.5 multipart parsing.  #6524 [Bob Silva]
+
 * Set ActionView::Base.default_form_builder once rather than passing the :builder option to every form or overriding the form helper methods.  [Jeremy Kemper]
 
 * Deprecate expire_matched_fragments. Use expire_fragment instead.  #6535 [Bob Silva]
diff --git a/actionpack/test/fixtures/multipart/binary_file b/actionpack/test/fixtures/multipart/binary_file
index 1bcf97f664..7e4c68c62e 100644
Binary files a/actionpack/test/fixtures/multipart/binary_file and b/actionpack/test/fixtures/multipart/binary_file differ