2 files changed, 2 insertions, 0 deletions
diff --git a/actionpack/lib/action_view/template.rb b/actionpack/lib/action_view/template.rb
index edb3d427d5..644debd49c 100644
--- a/actionpack/lib/action_view/template.rb
+++ b/actionpack/lib/action_view/template.rb
@@ -163,6 +163,7 @@ module ActionView
       pieces  = @virtual_path.split("/")
       name    = pieces.pop
       partial = !!name.sub!(/^_/, "")
+      lookup.formats = @formats
       lookup.disable_cache do
         lookup.find_template(name, [ pieces.join('/') ], partial, @locals)
       end
diff --git a/actionpack/lib/action_view/template/handlers.rb b/actionpack/lib/action_view/template/handlers.rb
index 67978ada7e..4e22bec6cc 100644
--- a/actionpack/lib/action_view/template/handlers.rb
+++ b/actionpack/lib/action_view/template/handlers.rb
@@ -23,6 +23,7 @@ module ActionView #:nodoc:
       # and should return the rendered template as a String.
       def register_template_handler(extension, handler)
         @@template_handlers[extension.to_sym] = handler
+        @@template_extensions = nil
       end
 
       def template_handler_extensions