diff --git a/relational/__init__.py b/relational/__init__.py
index 69a4487..9a4c4e7 100644
--- a/relational/__init__.py
+++ b/relational/__init__.py
@@ -1,11 +1,11 @@
 __all__ = (
 
-"relation"
-"parser"
-"optimizer"
-"optimizations"
-"rtypes"
-"parallel"
+"relation",
+"parser",
+"optimizer",
+"optimizations",
+"rtypes",
+"parallel",
 
 
 )