diff --git a/lib/jbuilder/railtie.rb b/lib/jbuilder/railtie.rb
index 2aeefbb..7ff1d6b 100644
--- a/lib/jbuilder/railtie.rb
+++ b/lib/jbuilder/railtie.rb
@@ -20,6 +20,8 @@ module ApiRendering
           if name == 'ActionController::API'
             include ActionController::Helpers
             include ActionController::ImplicitRender
+            helper_method :combined_fragment_cache_key
+            helper_method :view_cache_dependencies
           end
         end
       end