diff --git a/v6d0auth/certs.py b/v6d0auth/certs.py
index 4f5f36c..d982e2e 100644
--- a/v6d0auth/certs.py
+++ b/v6d0auth/certs.py
@@ -5,7 +5,7 @@ from nacl.signing import SigningKey, VerifyKey, SignedMessage
 
 from v6d0auth.config import myroot, cakey
 
-__all__ = ('vkey', 'pkey', 'averify', 'receive')
+__all__ = ('vkey', 'pkey', 'sign', 'averify', 'receive', 'encrypt_self',)
 
 _keyfile = myroot / '.key'
 if _keyfile.exists():