diff --git a/docs/advanced/classes.rst b/docs/advanced/classes.rst
index f7db3ea..f4efc68 100644
--- a/docs/advanced/classes.rst
+++ b/docs/advanced/classes.rst
@@ -159,7 +159,7 @@
 
     class Dachshund(Dog):
         def __init__(self, name):
-            Dog.__init__(self) # Without this, undefined behavior may occur if the C++ portions are referenced.
+            Dog.__init__(self) # Without this, a TypeError is raised.
             self.name = name
         def bark(self):
             return "yap!"