diff --git a/harpoon/overview.py b/harpoon/overview.py
index <HASH>..<HASH> 100644
--- a/harpoon/overview.py
+++ b/harpoon/overview.py
@@ -176,7 +176,10 @@ class Harpoon(object):
             configuration.converters.done(path, meta.result)
 
             for key, v in val.items(ignore_converters=True):
+                if isinstance(v, MergedOptions):
+                    v.ignore_converters = True
                 meta.result[key] = v
+
             return spec.normalise(meta, meta.result)
 
         converter = Converter(convert=convert_image, convert_path=["images", image])
Make sure converter doesn't trip over itself