--- a/src/pyams_content/features/header/interfaces/__init__.py	Thu Jul 19 17:19:50 2018 +0200
+++ b/src/pyams_content/features/header/interfaces/__init__.py	Thu Jul 19 22:15:29 2018 +0200
@@ -54,6 +54,8 @@
 
     name = Attribute("Renderer name")
     settings_key = Attribute("Renderer settings key")
+    cache_key = Attribute("Renderer cache key")
+
 
 
 class IHeaderRendererSettings(IRendererSettings):