2 files changed, 4 insertions, 4 deletions
diff --git a/actionpack/lib/abstract_controller/rendering.rb b/actionpack/lib/abstract_controller/rendering.rb
index 887196b3d2..854b07d707 100644
--- a/actionpack/lib/abstract_controller/rendering.rb
+++ b/actionpack/lib/abstract_controller/rendering.rb
@@ -23,7 +23,7 @@ module AbstractController
     def render(*args, &block)
       options = _normalize_render(*args, &block)
       self.response_body = render_to_body(options)
-      _process_format(rendered_format, options) if rendered_format
+      _process_format(rendered_format, options[:plain]) if rendered_format
       self.response_body
     end
 
@@ -99,7 +99,7 @@ module AbstractController
 
     # Process the rendered format.
     # :api: private
-    def _process_format(format, options = {})
+    def _process_format(format, plain = false)
     end
 
     # Normalize args and options.
diff --git a/actionpack/lib/action_controller/metal/rendering.rb b/actionpack/lib/action_controller/metal/rendering.rb
index a3b0645dc0..0a005085ba 100644
--- a/actionpack/lib/action_controller/metal/rendering.rb
+++ b/actionpack/lib/action_controller/metal/rendering.rb
@@ -56,10 +56,10 @@ module ActionController
       nil
     end
 
-    def _process_format(format, options = {})
+    def _process_format(format, plain = false)
       super
 
-      if options[:plain]
+      if plain
         self.content_type = Mime::TEXT
       else
         self.content_type ||= format.to_s