diff --git a/umi/sumi/__init__.py b/umi/sumi/__init__.py
index 28531ce..e257309 100644
--- a/umi/sumi/__init__.py
+++ b/umi/sumi/__init__.py
@@ -1,4 +1,5 @@
 from .umi_arbiter.umi_arbiter import Arbiter
+from .umi_buffer.umi_buffer import Buffer
 from .umi_crossbar.umi_crossbar import Crossbar
 from .umi_decode.umi_decode import Decode
 from .umi_endpoint.umi_endpoint import Endpoint
@@ -22,6 +23,7 @@
 
 
 __all__ = ['Arbiter',
+           'Buffer',
            'Crossbar',
            'Decode',
            'Endpoint',