diff --git a/Lib/shelve.py b/Lib/shelve.py
index 2971354..d86718e 100644
--- a/Lib/shelve.py
+++ b/Lib/shelve.py
@@ -144,7 +144,7 @@
     def sync(self):
         if self.writeback and self.cache:
             self.writeback = False
-            for key, entry in self.cache.iteritems():
+            for key, entry in self.cache.items():
                 self[key] = entry
             self.writeback = True
             self.cache = {}