diff --git a/actionpack/CHANGELOG.md b/actionpack/CHANGELOG.md
index 7d1f67eec0c3fd38d41bb462ca6da8cfba9fce51..9dab1cc76a7c80ea70dbdfe76e6c9297c2f38aaf 100644
--- a/actionpack/CHANGELOG.md
+++ b/actionpack/CHANGELOG.md
@@ -1,7 +1,9 @@
 *   Add `:as` option to `ActionController:TestCase#process` and related methods.
-    
-    Specifying as: :mime_type allows the `CONTENT_TYPE` header to be specified
-    in controller tests without manually doing this through `@request.headers...`   
+
+    Specifying `as: mime_type` allows the `CONTENT_TYPE` header to be specified
+    in controller tests without manually doing this through `@request.headers['CONTENT_TYPE']`.
+
+    *Everest Stefan Munro-Zeisberger*
 
 *   Show cache hits and misses when rendering partials.
 
diff --git a/actionpack/lib/action_controller/test_case.rb b/actionpack/lib/action_controller/test_case.rb
index c7f40fd0e76e2ce8540630073dd231ebebddf8e1..11a6cf8e15d0baa120278b37288c87b2c5f2746b 100644
--- a/actionpack/lib/action_controller/test_case.rb
+++ b/actionpack/lib/action_controller/test_case.rb
@@ -450,7 +450,7 @@ def xml_http_request(*args)
       # - +flash+: A hash of parameters to store in the flash. This may be +nil+.
       # - +format+: Request format. Defaults to +nil+. Can be string or symbol.
       # - +as+: Content type. Defaults to +nil+. Must be a symbol that corresponds
-      #   to a mime type
+      #   to a mime type.
       #
       # Example calling +create+ action and sending two params:
       #