diff --git a/integrator/collection.py b/integrator/collection.py
index f21276c..cec8def 100644
--- a/integrator/collection.py
+++ b/integrator/collection.py
@@ -64,9 +64,7 @@ class ExternalCollectionAdapter(AdapterBase):
 
     def update(self):
         existing = self.context.getResources()
-        # TODO: use full address for checking for existing resources
         old = dict((adapted(obj).uniqueAddress, obj) for obj in existing)
-        #old = dict((adapted(obj).externalAddress, obj) for obj in existing)
         new = []
         oldFound = []
         provider = component.getUtility(IExternalCollectionProvider,