diff --git a/Lib/persist.py b/Lib/persist.py
index e503d95ecf8..065a3eaef3e 100755
--- a/Lib/persist.py
+++ b/Lib/persist.py
@@ -148,7 +148,7 @@ def dumpstring(x, typedict, types, stack):
 # Function to dump type objects
 #
 typeswitch = {}
-class some_class():
+class some_class:
 	def method(self): pass
 some_instance = some_class()
 #