diff --git a/Adapter.hxx b/Adapter.hxx
index 429cf82..a778950 100644
--- a/Adapter.hxx
+++ b/Adapter.hxx
@@ -28,7 +28,7 @@ namespace pEp {
 
             PEP_STATUS status = register_sync_callbacks(session(), nullptr,
                 _notifyHandshake, _retrieve_next_sync_event);
-//            throw_status(status);
+            throw_status(status);
 
             do_sync_protocol(session(), (void *)obj);
             unregister_sync_callbacks(session());