diff --git a/doc/en/how-to/assert.rst b/doc/en/how-to/assert.rst
index 43aeb66fdfc..d05b6e8ebad 100644
--- a/doc/en/how-to/assert.rst
+++ b/doc/en/how-to/assert.rst
@@ -137,7 +137,7 @@ If you want to check if a block of code is raising an exact exception type, you
 
         with pytest.raises(RuntimeError) as excinfo:
             foo()
-        assert excinfo.type is RuntimeError
+        assert issubclass(excinfo.type, RuntimeError)
 
 The :func:`pytest.raises` call will succeed, even though the function raises :class:`NotImplementedError`, because
 :class:`NotImplementedError` is a subclass of :class:`RuntimeError`; however the following `assert` statement will