diff --git a/tailbone/db.py b/tailbone/db.py
index 44388e50..30f1da93 100644
--- a/tailbone/db.py
+++ b/tailbone/db.py
@@ -145,12 +145,6 @@ def register(session, initial_state=datamanager.STATUS_ACTIVE,
     event.listen(session, "before_commit", ext.before_commit)
 
 
-# TODO: We can probably assume a new SA version since we use Continuum now.
-if tuple(int(x) for x in sa.__version__.split('.')) >= (0, 7):
-    register(Session)
-    register(TempmonSession)
-    register(TrainwreckSession)
-else:
-    Session.configure(extension=ZopeTransactionExtension())
-    TempmonSession.configure(extension=ZopeTransactionExtension())
-    TrainwreckSession.configure(extension=ZopeTransactionExtension())
+register(Session)
+register(TempmonSession)
+register(TrainwreckSession)