diff --git a/Lib/keyword.py b/Lib/keyword.py
index 83bb9a9046c..340b5c858bc 100755
--- a/Lib/keyword.py
+++ b/Lib/keyword.py
@@ -14,6 +14,7 @@
 
 kwlist = [
 #--start keywords--
+        '__assert__',
         'and',
         'break',
         'class',