diff --git a/src/dexorder/accounting.py b/src/dexorder/accounting.py
index b4e2ea0..1b6a851 100644
--- a/src/dexorder/accounting.py
+++ b/src/dexorder/accounting.py
@@ -110,7 +110,8 @@ async def _initialize_mark_to_market():
             config.nativecoin = weth if weth is not None else meh if meh is not None else None
     elif not config.nativecoin:
         factory = get_factory_contract()
-        wrapper = await factory.wrapper()
+        impl = await factory.implementation()
+        wrapper = await impl.wrapper()
         if wrapper != ADDRESS_0:
             config.nativecoin = wrapper
     quotes.clear()