diff --git a/stackalytics/processor/rcs.py b/stackalytics/processor/rcs.py
index 155bd4c24..ef6631ff4 100644
--- a/stackalytics/processor/rcs.py
+++ b/stackalytics/processor/rcs.py
@@ -34,6 +34,8 @@ class RcsException(Exception):
 
 
 class Rcs(object):
+    """Base object for Review Control System"""
+
     def __init__(self):
         pass
 
diff --git a/stackalytics/processor/vcs.py b/stackalytics/processor/vcs.py
index 227737d2f..bb98daf95 100644
--- a/stackalytics/processor/vcs.py
+++ b/stackalytics/processor/vcs.py
@@ -28,6 +28,8 @@ LOG = logging.getLogger(__name__)
 
 
 class Vcs(object):
+    """Base object for Version Control System"""
+
     def __init__(self, repo, sources_root):
         self.repo = repo
         self.sources_root = sources_root