diff --git a/paramiko/__init__.py b/paramiko/__init__.py
index 34f71f0..81b694a 100644
--- a/paramiko/__init__.py
+++ b/paramiko/__init__.py
@@ -113,7 +113,7 @@ __all__ = [ 'Transport',
             'SSHClient',
             'MissingHostKeyPolicy',
             'AutoAddPolicy',
-            'RejectPolicy'
+            'RejectPolicy',
             'SecurityOptions',
             'SubsystemHandler',
             'Channel',
@@ -134,7 +134,7 @@ __all__ = [ 'Transport',
             'SFTPServer',
             'SFTPError',
             'SFTPAttributes',
-            'SFTPServerInterface'
+            'SFTPServerInterface',
             'ServerInterface',
             'BufferedFile',
             'Agent',