diff --git a/python/adapters/ponsim_olt/main.py b/python/adapters/ponsim_olt/main.py
index 86b6be0..e3c5b7f 100755
--- a/python/adapters/ponsim_olt/main.py
+++ b/python/adapters/ponsim_olt/main.py
@@ -359,7 +359,7 @@
 
             self.core_proxy = CoreProxy(
                 kafka_proxy=None,
-                core_topic=self.core_topic,
+                default_core_topic=self.core_topic,
                 my_listening_topic=self.listening_topic)
 
             self.adapter_proxy = AdapterProxy(
@@ -371,7 +371,8 @@
                                             adapter_proxy=self.adapter_proxy,
                                             config=config)
 
-            ponsim_request_handler = AdapterRequestFacade(adapter=self.adapter)
+            ponsim_request_handler = AdapterRequestFacade(adapter=self.adapter,
+                                                    core_proxy=self.core_proxy)
 
             yield registry.register(
                 'kafka_adapter_proxy',