diff --git a/letsencrypt/protocol/__init__.py b/attic/protocol/__init__.py
similarity index 100%
rename from letsencrypt/protocol/__init__.py
rename to attic/protocol/__init__.py
diff --git a/letsencrypt/protocol/chocolate.proto b/attic/protocol/chocolate.proto
similarity index 100%
rename from letsencrypt/protocol/chocolate.proto
rename to attic/protocol/chocolate.proto
diff --git a/letsencrypt/protocol/hashcash.py b/attic/protocol/hashcash.py
similarity index 100%
rename from letsencrypt/protocol/hashcash.py
rename to attic/protocol/hashcash.py