diff --git a/synapse/storage/data_stores/__init__.py b/synapse/storage/data_stores/__init__.py
index cecc04f03..cafedd5c0 100644
--- a/synapse/storage/data_stores/__init__.py
+++ b/synapse/storage/data_stores/__init__.py
@@ -24,7 +24,7 @@ class DataStores(object):
     """
 
     def __init__(self, main_store_class, db_conn, hs):
-        # Note we pass in the main store here as workers use a different main
+        # Note we pass in the main store class here as workers use a different main
         # store.
         database = Database(hs)