Migrate to Sphinx 1.0 C language constructs.
diff --git a/Doc/c-api/concrete.rst b/Doc/c-api/concrete.rst
index dc08967..65904ee 100644
--- a/Doc/c-api/concrete.rst
+++ b/Doc/c-api/concrete.rst
@@ -11,7 +11,7 @@
Passing them an object of the wrong type is not a good idea; if you receive an
object from a Python program and you are not sure that it has the right type,
you must perform a type check first; for example, to check that an object is a
-dictionary, use :cfunc:`PyDict_Check`. The chapter is structured like the
+dictionary, use :c:func:`PyDict_Check`. The chapter is structured like the
"family tree" of Python object types.
.. warning::