diff --git a/zipline/api.py b/zipline/api.py
index 2cb215c9..99c49d99 100644
--- a/zipline/api.py
+++ b/zipline/api.py
@@ -39,6 +39,7 @@ def symbol(symbol_str, as_of_date=None):
     return symbol_str
 
 __all__ = [
+    'symbol',
     'slippage',
     'commission',
     'math_utils',