diff --git a/src/calibre/ebooks/lit/oeb.py b/src/calibre/ebooks/lit/oeb.py
index a085478b5d..8ef7f41add 100644
--- a/src/calibre/ebooks/lit/oeb.py
+++ b/src/calibre/ebooks/lit/oeb.py
@@ -478,10 +478,10 @@ class TOC(object):
         self.nodes.append(node)
         return node
 
-    def iterdescendents(self):
+    def iterdescendants(self):
         for node in self.nodes:
             yield node
-            for child in node.iterdescendents():
+            for child in node.iterdescendants():
                 yield child
     
     def __iter__(self):