diff --git a/pyocd/coresight/discovery.py b/pyocd/coresight/discovery.py
index becb2533c..9482f652f 100644
--- a/pyocd/coresight/discovery.py
+++ b/pyocd/coresight/discovery.py
@@ -262,7 +262,7 @@ def _create_root_component(self, cmpid):
             memif = APAccessMemoryInterface(self.dp, ap_address)
 
             # Instantiate the component and attach to the target.
-            component = cmpid.factory(memif, cmpid, cmpid.address)
+            component = cmpid.factory(memif, cmpid, 0)
             self.target.add_child(component)
             component.init()
         except exceptions.Error as e: